Quelpr

Reactions of Carbon Compounds · CSEC Chemistry

221 past-paper questions on Reactions of Carbon Compounds, part of Organic Chemistry, from every CSEC Chemistry paper on Quelpr.

Practise Reactions of Carbon Compounds
  1. 1(a)(ii)1 mark· Chemistry Q1 1(a)(ii)Name ONE hydrocarbon, other than wax, that can be used as fuel.
  2. 1(c)(i)2 marks· Chemistry Q1 1(c)(i)Apparatus and materials needed
  3. 1(c)(i)8 marks· Chemistry Q1 1(c)(i)Hypothesis to be tested
  4. 1(c)(ii)2 marks· Chemistry Q1 1(c)(ii)Description of the method to be used
  5. 1(c)(ii)8 marks· Chemistry Q1 1(c)(ii)Materials and apparatus
  6. 1(c)(iii)1 mark· Chemistry Q1 1(c)(iii)ONE variable needed to be controlled
  7. 1(c)(iii)8 marks· Chemistry Q1 1(c)(iii)Method
  8. 1(c)(iv)1 mark· Chemistry Q1 1(c)(iv)ONE precaution to be taken
  9. 1(c)(iv)8 marks· Chemistry Q1 1(c)(iv)Variables controlled
  10. 1(c)(v)2 marks· Chemistry Q1 1(c)(v)Expected results
  11. 1(c)(v)8 marks· Chemistry Q1 1(c)(v)Data to be collected
  12. 1(c)(vi)8 marks· Chemistry Q1 1(c)(vi)Results linked to hypothesis
  13. 3(a)(i)2 marks· Chemistry Q3 3(a)(i)Define 'anaerobic fermentation'.
  14. 3(a)(ii)1 mark· Chemistry Q3 3(a)(ii)State ONE use of Compound A.
  15. 3(a)(ii)1 mark· Chemistry Q3 3(a)(ii)State ONE use of Compound P.
  16. 3(a)(ii)1 mark· Chemistry Q3 3(a)(ii)State whether Compound A burns in air with a sooty flame or a clean, blue flame.
  17. 3(a)(ii)1 mark· Chemistry Q3 3(a)(ii)Give ONE reason why high temperatures are NOT suitable for anaerobic fermentation.
  18. 3(a)(iii)2 marks· Chemistry Q3 3(a)(iii)Write a balanced chemical equation for this reaction.
  19. 3(a)(iii)1 mark· Chemistry Q3 3(a)(iii)Is the halogenation of ethene an addition or substitution reaction?
  20. 3(a)(iii)1 mark· Chemistry Q3 3(a)(iii)State ONE condition that is necessary for this reaction to take place.
  21. 3(a)(iii)1 mark· Chemistry Q3 3(a)(iii)State ONE chemical property of Compound D.
  22. 3(a)(iii)a)1 mark· Chemistry Q3 3(a)(iii)a)State ONE necessary condition for B to react with chlorine.
  23. 3(a)(iii)b)4 marks· Chemistry Q3 3(a)(iii)b)Draw the FULLY displayed structures of the organic products for the reactions of A and B with chlorine.
  24. 3(a)(iv)2 marks· Chemistry Q3 3(a)(iv)Draw the FULLY DISPLAYED structural formula of the product (colourless compound) formed when one mole of Compound A reacts with one mole of chlorine gas.
  25. 3(a)(iv)1 mark· Chemistry Q3 3(a)(iv)State ONE physical property of C₄H₈.
  26. 3(b)2 marks· Chemistry Q3 3(b)Compound A burns with a blue flame in oxygen. Write a balanced equation for this reaction.
  27. 3(b)2 marks· Chemistry Q3 3(b)State one use EACH of Compound X and Compound Y.
  28. 3(b)4 marks· Chemistry Q3 3(b)Draw FULLY displayed structures of the hydrolysis products, A and B.
  29. 3(b)(i)1 mark· Chemistry Q3 3(b)(i)State the observation for this reaction. Observation:
  30. 3(b)(i)2 marks· Chemistry Q3 3(b)(i)Describe briefly ONE test that could be used to distinguish between Compound A and Compound B. Test: Observation:
  31. 3(b)(i)2 marks· Chemistry Q3 3(b)(i)Explain why Compound C is soluble in water and Compound D is not.
  32. 3(b)(i)2 marks· Chemistry Q3 3(b)(i)State the reagent(s) and condition(s) for Reaction 1.
  33. 3(b)(i)4 marks· Chemistry Q3 3(b)(i)Write balanced chemical equations to show EACH step in the formation of dichloromethane.
  34. 3(b)(i)2 marks· Chemistry Q3 3(b)(i)Draw the structure of the product formed when Compound A reacts with EACH of the following: Bromine Sodium
  35. 3(b)(i)2 marks· Chemistry Q3 3(b)(i)Explain why Compound Q is soluble in water.
  36. 3(b)(i)1 mark· Chemistry Q3 3(b)(i)What is meant by a 'functional group'?
  37. 3(b)(ii)2 marks· Chemistry Q3 3(b)(ii)Write a chemical equation for this reaction. Equation:
  38. 3(b)(ii)1 mark· Chemistry Q3 3(b)(ii)State ONE physical property of Compound P.
  39. 3(b)(ii)4 marks· Chemistry Q3 3(b)(ii)Compounds A and B both react with sodium. Write the fully displayed structural formulae for A and B.
  40. 3(b)(ii)2 marks· Chemistry Q3 3(b)(ii)Both Compound A and Compound B burn in oxygen. Write a balanced chemical equation for the burning of Compound B in excess oxygen. Equation:
  41. 3(b)(ii)1 mark· Chemistry Q3 3(b)(ii)State the name of the process occurring during Reaction 2.
  42. 3(b)(ii)2 marks· Chemistry Q3 3(b)(ii)Write a balanced equation for the chemical reaction of Compound C with calcium metal.
  43. 3(b)(ii)1 mark· Chemistry Q3 3(b)(ii)Is the halogenation of methane an addition or substitution reaction?
  44. 3(b)(ii)8 marks· Chemistry Q3 3(b)(ii)Complete Table 4 by a) identifying the reagents b) drawing the fully displayed structures of the products.
  45. 3(b)(ii)7 marks· Chemistry Q3 3(b)(ii)Complete Table 3 by identifying the reagents or reaction conditions and drawing the fully displayed structures of the products.
  46. 3(b)(iii)2 marks· Chemistry Q3 3(b)(iii)Draw the FULLY displayed structure of the product in the equation in (b) (ii) above and state the name of this product. Structure Name:
  47. 3(b)(iii)1 mark· Chemistry Q3 3(b)(iii)State ONE chemical property of Compound P.
  48. 3(b)(iii)2 marks· Chemistry Q3 3(b)(iii)Give ONE use EACH for Compound A and Compound B. Use for Compound A: Use for Compound B:
  49. 3(b)(iii)3 marks· Chemistry Q3 3(b)(iii)Draw the correct formulae for Compounds E and F and hence write a balanced equation for Reaction 3.
  50. 3(b)(iv)2 marks· Chemistry Q3 3(b)(iv)Draw the full structural formula of the organic product that is formed when Compound E reacts with Compound B, the structure of which is shown on page 8.
  51. 3(b)(iv)1 mark· Chemistry Q3 3(b)(iv)State the name of the homologous series to which Compound J belongs.
  52. 3(c)2 marks· Chemistry Q3 3(c)State which of the two compounds, A or B, is more soluble in water. Give a reason for your answer.
  53. 3(c)2 marks· Chemistry Q3 3(c)Name ONE by-product of the saponification of fats and oils, and state ONE disadvantage of synthetic cleaning agents over soaps.
  54. 3(c)(i)2 marks· Chemistry Q3 3(c)(i)Name the type of reaction involved in the conversion of A to E.
  55. 3(c)(i)1 mark· Chemistry Q3 3(c)(i)Identify the homologous series to which Compound W belongs.
  56. 3(c)(i)1 mark· Chemistry Q3 3(c)(i)State the name of Compound X and the homologous series to which it belongs. Name of Compound X: Homologous series:
  57. 3(c)(i)2 marks· Chemistry Q3 3(c)(i)Describe ONE chemical test that can be used to distinguish between A and B.
  58. 3(c)(i)1 mark· Chemistry Q3 3(c)(i)Identify X.
  59. 3(c)(i)1 mark· Chemistry Q3 3(c)(i)State ONE physical property that is common to both Compounds F and G.
  60. 3(c)(i)2 marks· Chemistry Q3 3(c)(i)State the expected colour change for the reaction.
  61. 3(c)(i)1 mark· Chemistry Q3 3(c)(i)Name the functional group (link) present in the polymer.
  62. 3(c)(ii)2 marks· Chemistry Q3 3(c)(ii)Name the type of reaction involved in the conversion of B to F.
  63. 3(c)(ii)2 marks· Chemistry Q3 3(c)(ii)Write the FULLY DISPLAYED structural formulae of the two molecules that are produced when Compound X is hydrolysed.
  64. 3(c)(ii)2 marks· Chemistry Q3 3(c)(ii)Write the FULLY DISPLAYED structural formulae of the two molecules that are produced when Compound W is hydrolysed by dilute hydrochloric acid, and state the name of any ONE of the structures.
  65. 3(c)(ii)2 marks· Chemistry Q3 3(c)(ii)Will both A and B be soluble in water? Give a reason for your answer.
  66. 3(c)(ii)1 mark· Chemistry Q3 3(c)(ii)State ONE physical property common to both Compound A and Compound B.
  67. 3(c)(ii)2 marks· Chemistry Q3 3(c)(ii)State which TWO of these compounds are soluble in water, and give a reason for your choice. TWO compounds: Reason:
  68. 3(c)(ii)1 mark· Chemistry Q3 3(c)(ii)State the name of Compound D and the homologous series to which it belongs. Name: Homologous series:
  69. 3(c)(ii)1 mark· Chemistry Q3 3(c)(ii)State ONE physical property of Compound Q.
  70. 3(c)(ii)2 marks· Chemistry Q3 3(c)(ii)Draw the FULLY DISPLAYED structural formula of Compound S.
  71. 3(c)(ii)1 mark· Chemistry Q3 3(c)(ii)State which compound, F or G, will react with bromine in the dark.
  72. 3(c)(iii)2 marks· Chemistry Q3 3(c)(iii)Draw the FULLY displayed structure of the product that is formed from the reaction in (c) (ii).
  73. 3(d)2 marks· Chemistry Q3 3(d)State whether Compound A or Compound C would react more vigorously with sodium metal and give a reason for your choice.
  74. 3(d)2 marks· Chemistry Q3 3(d)Describe a chemical test to identify the functional group present in compound E. In your answer you should indicate the reagent to be used and write a chemical equation for the reaction which occurs. Reagent: _____.…
  75. 3(d)(i)2 marks· Chemistry Q3 3(d)(i)Draw the structure of the alcohol formed from Compound Y.
  76. 3(d)(i)1 mark· Chemistry Q3 3(d)(i)State which of the two compounds, A or B, reacts with bromine.
  77. 3(d)(ii)2 marks· Chemistry Q3 3(d)(ii)State the reagents and reaction conditions for the conversion of Compound Y to the alcohol.
  78. 3(d)(ii)1 mark· Chemistry Q3 3(d)(ii)State the colour change that is observed when the reaction occurs.
  79. 3(d)(iii)2 marks· Chemistry Q3 3(d)(iii)Outline a chemical test that can be used to distinguish between propene and its polymer.
  80. 3(d)(iii)2 marks· Chemistry Q3 3(d)(iii)Write a balanced chemical equation for the reaction.
  81. 3(d)(iii)2 marks· Chemistry Q3 3(d)(iii)Compounds A and B react to form Compound C. Sketch the FULLY DISPLAYED structural formula for Compound C.
  82. 3(d)(iv)1 mark· Chemistry Q3 3(d)(iv)Will Compound F burn in air with a clear blue flame?
  83. 3(d)(iv)1 mark· Chemistry Q3 3(d)(iv)Identify the homologous series of Compound C.
  84. 3(d)(v)2 marks· Chemistry Q3 3(d)(v)State TWO other types of reactions that Compound A can undergo.
  85. 3(d)(v)2 marks· Chemistry Q3 3(d)(v)Write a balanced chemical equation for the reaction that occurs when Compound F burns in air.
  86. 3(d)(vi)2 marks· Chemistry Q3 3(d)(vi)State TWO properties of hydrocarbons that make them good fuels.
  87. 3(e)2 marks· Chemistry Q3 3(e)Write a balanced equation for the reaction of Compound C with sodium metal.
  88. 3(e)1 mark· Chemistry Q3 3(e)State the name of the ester formed.
  89. 3(e)2 marks· Chemistry Q3 3(e)State the conditions required for the dehydration of ethanol.
  90. 3(e)(i)4 marks· Chemistry Q3 3(e)(i)State the reagents and reaction conditions necessary to convert E to A. Reagent(s): _____. Reaction condition: _____.
  91. 3(e)(ii)4 marks· Chemistry Q3 3(e)(ii)State the reagents and reaction conditions necessary to convert F to B. Reagent(s): _____. Reaction condition: _____.
  92. 3(f)2 marks· Chemistry Q3 3(f)Write the full equation for the reaction between ethanol and ethanoic acid.
  93. 3(g)3 marks· Chemistry Q3 3(g)Compounds A and C react together in the presence of a catalyst to form Compound D. State the name of the catalyst and draw the FULLY DISPLAYED structure of Compound D.
  94. 4(a)(ii)1 mark· Chemistry Q4 4(a)(ii)Write a chemical equation to represent the reaction occurring between Compound A and the bromine solution.
  95. 4(a)(ii)1 mark· Chemistry Q4 4(a)(ii)Name the reagent, q, required to convert X to D in Figure 3.
  96. 4(a)(iii)1 mark· Chemistry Q4 4(a)(iii)Name the type of reaction which occurs when Compound A reacts with bromine.
  97. 4(b)(i)2 marks· Chemistry Q4 4(b)(i)Write a balanced equation to show this reaction.
  98. 4(b)(i)2 marks· Chemistry Q4 4(b)(i)What is meant by 'fermentation,' as it relates to the manufacture of rum?
  99. 4(b)(ii)3 marks· Chemistry Q4 4(b)(ii)1,2-dichloroethane can be decomposed to form chloroethene (CH₂ = CHCl) and hydrogen chloride. Describe a test that can be used to distinguish between 1,2-dichloroethane and chloroethene in the laboratory. Reagent:…
  100. 4(b)(ii)1 mark· Chemistry Q4 4(b)(ii)Write a chemical equation to represent the reaction occurring between Compound B and bromine.
  101. 4(b)(ii)2 marks· Chemistry Q4 4(b)(ii)Write the equation for the fermentation process defined in (i).
  102. 4(b)(ii)a)2 marks· Chemistry Q4 4(b)(ii)a)State ONE physical property of Compound X.
  103. 4(b)(ii)b)1 mark· Chemistry Q4 4(b)(ii)b)State ONE physical property of Compound E.
  104. 4(b)(iii)2 marks· Chemistry Q4 4(b)(iii)Suggest ONE material that could be used to produce wine by fermentation, and give a reason for your suggestion.
  105. 4(b)(iii)1 mark· Chemistry Q4 4(b)(iii)Name the type of reaction which occurs when Compound B reacts with bromine.
  106. 4(c)(i)3 marks· Chemistry Q4 4(c)(i)Describe ONE simple chemical test which can be used in the laboratory to distinguish between Compounds C and D. State the reagent to be used and describe the observations.
  107. 4(c)(ii)2 marks· Chemistry Q4 4(c)(ii)Write a chemical equation to represent the condensation reaction between Compounds C and D.
  108. 4(c)(iii)a)2 marks· Chemistry Q4 4(c)(iii)a)Write a chemical equation to represent the dehydration of Compound C.
  109. 4(c)(iii)b)2 marks· Chemistry Q4 4(c)(iii)b)Indicate the reagent and reaction conditions for (iii) a) above.
  110. 4(d)2 marks· Chemistry Q4 4(d)What chemical test may be used to distinguish between Compounds X and Y? Reagent: Observation:
  111. 5(a)7 marks· Chemistry Q5 5(a)Describe the process of fermentation. Include in your description: the starting material; the role of yeast; the reaction conditions; a balanced chemical equation for the reaction.
  112. 5(a)5 marks· Chemistry Q5 5(a)Describe the process of fermentation. In your description, identify the raw materials and products, and write a relevant chemical equation.
  113. 5(a)(i)6 marks· Chemistry Q5 5(a)(i)Write a chemical equation to illustrate the reaction taking place in the commercial preparation of ethanol from EACH of the following: a) Ethene b) Glucose. In EACH case you should state the reaction conditions.
  114. 5(a)(i)2 marks· Chemistry Q5 5(a)(i)State the name of Compound C and the homologous series to which it belongs.
  115. 5(a)(i)1 mark· Chemistry Q5 5(a)(i)State the homologous series to which ethyl pentanoate belongs.
  116. 5(a)(ii)3 marks· Chemistry Q5 5(a)(ii)Draw the FULLY DISPLAYED structure of ethyl pentanoate and circle the functional group.
  117. 5(a)(ii)3 marks· Chemistry Q5 5(a)(ii)Draw a fully labelled diagram of the apparatus that is used to separate the ethanol from the reaction mixture during the fermentation of glucose.
  118. 5(a)(ii)2 marks· Chemistry Q5 5(a)(ii)Draw the FULLY displayed structural formulae of the two molecules that are produced when Compound C is hydrolysed.
  119. 5(a)(iii)2 marks· Chemistry Q5 5(a)(iii)Write the molecular formulae for the alcohol and carboxylic acid that will react to produce ethyl pentanoate.
  120. 5(a)(iv)1 mark· Chemistry Q5 5(a)(iv)Name the catalyst involved in the reaction between the alcohol and carboxylic acid stated in (c)(iii).
  121. 5(a)(v)2 marks· Chemistry Q5 5(a)(v)Explain why an ester has low solubility in water whereas a simple alcohol is very soluble in water.
  122. 5(b)4 marks· Chemistry Q5 5(b)Briefly describe the soap-making process, stating the necessary reagents and conditions. Based on the structure of the fat molecule shown above, draw the structure of the soap that would be formed during the…
  123. 5(b)6 marks· Chemistry Q5 5(b)After fermentation, the product is usually filtered and distilled. Suggest why distillation is necessary and draw a simple labelled diagram of the apparatus which can be used for distilling the fermented product in a…
  124. 5(b)4 marks· Chemistry Q5 5(b)State the reaction condition and reagent used for the alkaline hydrolysis of ethyl ethanoate. Hence, write a balanced chemical equation for this reaction.
  125. 5(b)(i)2 marks· Chemistry Q5 5(b)(i)Write a balanced equation for this reaction.
  126. 5(b)(i)3 marks· Chemistry Q5 5(b)(i)State the name of Compound D and identify the reagent and conditions necessary for ethanol to be converted into Compound D.
  127. 5(b)(i)3 marks· Chemistry Q5 5(b)(i)Using Compound C to represent the structure of a fat, draw the structure of the product(s) expected from the saponification of this fat.
  128. 5(b)(i)2 marks· Chemistry Q5 5(b)(i)Write a balanced chemical equation for the reaction between Compound D and ethanol to form Compound E.
  129. 5(b)(i)3 marks· Chemistry Q5 5(b)(i)Outline, using balanced equations, the formation of ethanol from sucrose.
  130. 5(b)(ii)2 marks· Chemistry Q5 5(b)(ii)State the type of reaction taking place and identify the reaction conditions.
  131. 5(b)(ii)3 marks· Chemistry Q5 5(b)(ii)Write an equation to illustrate the process of hydrogenation of an oil represented by Compound D. You should name the catalyst used in the process.
  132. 5(b)(ii)7 marks· Chemistry Q5 5(b)(ii)Explain how ethanol can be made from the fermentation of sugar. Include the chemical equation for the overall fermentation process.
  133. 5(b)(ii)2 marks· Chemistry Q5 5(b)(ii)Suggest the conditions for the reaction between Compound D and ethanol.
  134. 5(b)(ii)3 marks· Chemistry Q5 5(b)(ii)Jemina was presented with a flask that contains a mixture of diluted rum. Draw a labelled diagram of the apparatus she should use in the laboratory to obtain a concentrated sample of ethanol.
  135. 5(b)(iii)1 mark· Chemistry Q5 5(b)(iii)State ONE other use of ethanol.
  136. 5(b)(iii)1 mark· Chemistry Q5 5(b)(iii)State the type of reaction that occurs between Compound D and ethanol.
  137. 5(c)2 marks· Chemistry Q5 5(c)In some countries, the Breathalyzer test is used to determine the level of alcohol on the breath of suspected drunk drivers. Identify the main reagent used in the Breathalyzer test and hence state the type of reaction…
  138. 5(c)2 marks· Chemistry Q5 5(c)Commercial soaps are usually manufactured using natural esters. Name the process used to make soap and state ONE source of these natural esters.
  139. 5(c)(i)1 mark· Chemistry Q5 5(c)(i)Define the term 'unsaturated'.
  140. 5(c)(i)2 marks· Chemistry Q5 5(c)(i)Write a balanced chemical equation for the reaction between Compound D and sodium metal.
  141. 5(c)(ii)1 mark· Chemistry Q5 5(c)(ii)State what is meant by a hydrogenation reaction.
  142. 5(c)(iii)2 marks· Chemistry Q5 5(c)(iii)Draw the FULLY DISPLAYED structural formula for the hydrogenation product of 1-Butene.
  143. 5(d)(i)5 marks· Chemistry Q5 5(d)(i)Write an equation, using FULLY displayed structures, which summarizes the expected reactions in EACH case. Identify any products formed.
  144. 5(d)(i)2 marks· Chemistry Q5 5(d)(i)An alkane and an alkene
  145. 5(d)(ii)2 marks· Chemistry Q5 5(d)(ii)Write a balanced chemical equation for the complete combustion of pentane.
  146. 5(d)(ii)2 marks· Chemistry Q5 5(d)(ii)An alkane and a carboxylic acid.
  147. 6(a)(ii)2 marks· Chemistry Q6 6(a)(ii)Discuss the role of Leavening agent (baking powder and yeast) in the making of dough:
  148. 6(a)(iii)2 marks· Chemistry Q6 6(a)(iii)Discuss the role of Heat in the making of dough:
  149. 6(b)(i)3 marks· Chemistry Q6 6(b)(i)State ONE similarity and ONE difference in the way they act as raising agents.
  150. 6(b)(ii)6 marks· Chemistry Q6 6(b)(ii)Explain how the action of yeast during bread-making causes the dough to rise. Include TWO chemical equations and the reaction conditions.
  151. 6(c)3 marks· Chemistry Q6 6(c)Suggest a possible explanation for this.
  152. 3(a)(i)a)4.5 marks· CSEC Chemistry · January 2002 · Paper 2Briefly discuss how ethanol can be obtained from a fermentation process, including reagents, reaction conditions, and relevant chemical equations.
  153. 3(a)(i)b)4.5 marks· CSEC Chemistry · January 2002 · Paper 2Briefly discuss how ethanol can be obtained from ethene, including reagents, reaction conditions, and relevant chemical equations.
  154. 3(a)(ii)4 marks· CSEC Chemistry · January 2002 · Paper 2Draw a fully labelled diagram of the apparatus which can be used to obtain a sample of ethanol from the fermentation product mixture.
  155. 3(a)(iii)2 marks· CSEC Chemistry · January 2002 · Paper 2How can it be determined that the sample collected in (a)(ii) above is ethanol?
  156. Q71 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1What type of reaction does the equation represent?
  157. Q261 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1Which of the following reactions occurs between propene and bromine?
  158. Q351 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1In which reaction is ethene produced from ethanol?
  159. Q361 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1Which reaction involves the boiling of a fat or oil with aqueous sodium hydroxide (caustic soda)?
  160. Q501 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1Which of the following structures represents a compound that can react with an alcohol to produce a sweet smelling liquid?
  161. Q591 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1Which of these compounds will react with bromine solution only if light is present?
  162. Q601 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1During the manufacture of ethanol by fermentation, the gas evolved
  163. Q471 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1Which of the following about ethane is correct?
  164. Q481 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1Which of the following substances would an alkane react?
  165. Q491 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1Which of the above is the formula of a compound that undergoes a substitution reaction with bromine?
  166. Q501 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1Which of the above is the formula of a compound which burns with a sooty flame?
  167. Q511 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1Which of the following statements are true of alkanes and alkenes? I. Both burn in air to give carbon dioxide and water. II. Alkanes undergo substitution reactions whilst alkenes undergo addition reactions. III.…
  168. Q541 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1Which of the following equations represents the fermentation of sugars, using glucose as the substrate?
  169. Q571 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1Which of the following compounds can decolorize potassium manganate(VII)?
  170. Q261 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1Which of the following reactions occurs between propene and bromine?
  171. Q381 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1The compound ethene is described as being unsaturated. This means that the
  172. Q441 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1Which of the following MOST likely identifies P and Q?
  173. Q451 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1What is the correct structural formula for X?
  174. Q461 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1Which of the compounds above has a fruity odour?
  175. Q471 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1Which of the compounds above reacts with sodium carbonate to produce a gas which turns lime water milky?
  176. Q521 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1Which of the following statements is/are true of alkenes? I. They react with \text{KMnO}_4/\text{H}^+. II. They undergo addition reactions. III. They undergo substitution reactions.
  177. Q531 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1Which of the following tests can be used to distinguish between an alkane and an alkene? I. Adding bromine solution II. Burning III. Conductivity
  178. Q551 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1During the manufacture of ethanol by fermentation, the gas evolved
  179. Q591 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1Which of the following substances is a product of a halogenation reaction with methane?
  180. 3(b)(i)1 mark· CSEC Chemistry · January 2021 · Paper 2What is the functional group of ethanol, CH₃CH₂OH?
  181. 3(b)(ii)5 marks· CSEC Chemistry · January 2021 · Paper 2Complete Table 2 by inserting the reaction conditions and drawing the fully displayed structures of the products formed for the two reactions of ethanol.
  182. 5(a)4 marks· CSEC Chemistry · January 2021 · Paper 2Identify the types of reactions numbered 1, 2, 3 and 4 in Figure 3.
  183. 5(b)(i)2 marks· CSEC Chemistry · January 2021 · Paper 2Identify suitable reagents and reaction conditions used for converting Compound A to Compound B via Reaction 1.
  184. 5(b)(ii)2 marks· CSEC Chemistry · January 2021 · Paper 2Identify suitable reagents and reaction conditions used for converting Compound A to Compound C via Reaction 2.
  185. 5(d)4 marks· CSEC Chemistry · January 2021 · Paper 2Describe a chemical test that can be used to distinguish Compound A from Compound B.
  186. Q431 mark · multiple choice· CSEC Chemistry · May/June 2010 · Paper 1Which of the following reactions correctly represents the dehydration of ethanol?
  187. Q451 mark · multiple choice· CSEC Chemistry · May/June 2010 · Paper 1When ethanoic acid and ethanol react to form ethyl-ethanoate, the catalyst used is
  188. Q471 mark · multiple choice· CSEC Chemistry · May/June 2010 · Paper 1Which of the following statements are true for the fermentation of carbohydrates to produce ethanol? I. The enzymes are obtained from yeast. II. The reaction mixture is kept at 50\ ^\circ\text{C}. III. Carbon dioxide…
  189. Q471 mark · multiple choice· CSEC Chemistry · May/June 2011 · Paper 1The compound ethene is described as being unsaturated. This means that the
  190. Q501 mark · multiple choice· CSEC Chemistry · May/June 2011 · Paper 1Ethyl ethanoate and fats are classified as esters. From this information it can be deduced that they BOTH
  191. Q511 mark · multiple choice· CSEC Chemistry · May/June 2011 · Paper 1Which of the organic compounds undergoes addition reactions?
  192. Q521 mark · multiple choice· CSEC Chemistry · May/June 2011 · Paper 1Which of the organic compounds is immiscible with water and is sweet smelling?
  193. Q531 mark · multiple choice· CSEC Chemistry · May/June 2011 · Paper 1Which of the organic compounds is dehydrated by concentrated sulphuric acid to produce a gas which decolourises bromine?
  194. Q481 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1Item 48 refers to the compound shown below. \begin{array}{c} \text{CH}_3 \\ | \\ \text{H}_3\text{C}-\text{C}-\text{CH}_2\text{OH} \\ | \\ \text{CH}_2 \\ | \\ \text{CH}_3 \end{array} Which TWO of the following…
  195. Q501 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1Ethyl ethanoate and fats are classified as esters. From this information it can be deduced that BOTH
  196. Q511 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1Which of the following reactions occurs between propene and bromine?
  197. Q521 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1Which of the following compounds would increase in mass when treated with hydrogen in the presence of nickel?
  198. Q531 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1Items 53-54 refer to the following options. (A) Addition (B) Isomerism (C) Esterification (D) Polymerisation Each option may be used once, more than once or not at all to answer the items below. What is the name of…
  199. Q551 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1\text{RCOOH}(\text{aq}) + \text{NaOH}(\text{aq}) \rightarrow \text{RCOONa}(\text{aq}) + \text{H}_2\text{O}(\text{l}) Which of the following processes CORRECTLY describes the reaction above?
  200. Q581 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1The fermentation of sugars, using glucose as the substrate, can be represented by the equation
  201. Q321 mark · multiple choice· CSEC Chemistry · May/June 2015 · Paper 1Which of the following molecular formulae represents the alcohol whose boiling point is 180\ ^\circ\text{C}?
  202. Q341 mark · multiple choice· CSEC Chemistry · May/June 2015 · Paper 1The product I is
  203. Q361 mark · multiple choice· CSEC Chemistry · May/June 2015 · Paper 1Which of the following reactions occurs between propene and bromine?
  204. Q371 mark · multiple choice· CSEC Chemistry · May/June 2015 · Paper 1The forward reaction is known as
  205. Q381 mark · multiple choice· CSEC Chemistry · May/June 2015 · Paper 1The reverse reaction is known as
  206. Q401 mark · multiple choice· CSEC Chemistry · May/June 2015 · Paper 1Which of the following reagent(s) can be used for converting ethanol to ethanoic acid?
  207. Q411 mark · multiple choice· CSEC Chemistry · May/June 2015 · Paper 1The fermentation of sugars, using glucose as the substrate, can be represented by the equation
  208. Q441 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1Which TWO of the following phrases correctly describe the compound shown? I. An alcohol II. A branched alkane III. Reactive with sodium IV. Not reactive with acidified potassium dichromate
  209. Q471 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1Which of the following substances is a product of a halogenation reaction with methane?
  210. Q511 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1Which of the substances is a compound that is soluble in water?
  211. Q531 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1The functional group present in carboxylic acids is
  212. Q551 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1With which of the following substances would an alkane react?
  213. Q581 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1Which TWO of the following substances can be produced DIRECTLY from ethanol? I. Ethene II. Ethane III. Sodium ethanoate IV. Ethyl ethanoate
  214. Q601 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1Which of the following compounds can decolourize potassium manganate(VII)?
  215. Q321 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1Which of the following molecular formulae represents the alcohol whose boiling point is 180\text{ }^\circ\text{C}?
  216. Q351 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1Which of the conversions above correctly represents the dehydration of ethanol?
  217. Q361 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1Which of the conversions above requires manganate(VII)/\text{KMnO}_4?
  218. Q371 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1The forward reaction is known as
  219. Q381 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1The reverse reaction is known as
  220. Q411 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1An organic substance, when reacted with bromine water, decolourizes it immediately. The substance is MOST likely an
  221. Q441 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1Ethene reacts with hydrogen, chlorine and hydrogen chloride. These reactions are all examples of

Related topics in Organic Chemistry