CSEC Chemistry · May/June 2013 · Paper 1
59 multiple-choice items from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.
- Q11 mark · multiple choice'Mass number' is the number of
- Q21 mark · multiple choiceWhich TWO of the following features are true about the arrangement of electrons, protons and neutrons in an atom? I. Protons and neutrons are found in the nucleus. II. Electrons can be found anywhere outside the…
- Q31 mark · multiple choiceItems 3-5 refer to the following types of substances. (A) Salt (B) Base (C) Alkali (D) Acid Match EACH item below with ONE of the options above. Each option may be used more than once, once or not at all. Which of the…
- Q41 mark · multiple choiceItems 3-5 refer to the following types of substances. (A) Salt (B) Base (C) Alkali (D) Acid Match EACH item below with ONE of the options above. Each option may be used more than once, once or not at all. Which of the…
- Q51 mark · multiple choiceItems 3-5 refer to the following types of substances. (A) Salt (B) Base (C) Alkali (D) Acid Match EACH item below with ONE of the options above. Each option may be used more than once, once or not at all. Which of the…
- Q61 mark · multiple choiceThe atomic number of Element Z is 13. In which group of the periodic table should Element Z be placed?
- Q71 mark · multiple choiceThe arrangement of elements in the periodic table is based on
- Q91 mark · multiple choiceWhen solid lead nitrate is heated, it decomposes giving off nitrogen(IV) oxide and oxygen. The BALANCED equation for this reaction is
- Q101 mark · multiple choiceWhich of the following diagrams illustrates bonding in chlorine?
- Q111 mark · multiple choiceA new element R shows chemical properties similar to the element sodium. What is the correct formula of a compound formed with R and sulfur?
- Q121 mark · multiple choiceAn example of a substance with a giant molecular structure is
- Q131 mark · multiple choiceWhich of the following elements can exist in more than one form in the SAME state?
- Q141 mark · multiple choiceItem 14 refers to the following information. Element | Atomic Number I | 3 II | 6 III | 17 IV | 18 Which TWO of the elements above when combined with each other form MAINLY ionic compounds?
- Q151 mark · multiple choiceWhich of the following features are usually true of covalent compounds? I. Insoluble in water II. Existing in the solid state III. Easily boiled and melted
- Q161 mark · multiple choiceFrom which of the following mixtures can a solid be obtained by the process of sedimentation?
- Q171 mark · multiple choiceA separating funnel can be used to separate a mixture of
- Q181 mark · multiple choiceOne of the ways in which hydrogen resembles the Group 7 elements is that hydrogen
- Q191 mark · multiple choiceThe pH of fresh sugar cane juice which is usually 5.0–5.5 can be changed to 7.5–8.0 for more efficient processing by adding
- Q201 mark · multiple choiceWhich of the following salts is prepared by precipitation?
- Q211 mark · multiple choiceWhich of the following compounds is NOT a normal salt?
- Q221 mark · multiple choiceA 'weak acid' is BEST described as one that yields a
- Q231 mark · multiple choiceItem 23 refers to the following equation.
\text{NO}_2(\text{g}) + \text{SO}_2(\text{g}) \rightarrow \text{NO}(\text{g}) + \text{SO}_3(\text{g})Which of the following compounds is reduced? - Q241 mark · multiple choiceWhich of the following salts are soluble in water? I. Ammonium carbonate II. Calcium sulfate III. Lead nitrate
- Q251 mark · multiple choiceWhich of the following substances is a weak electrolyte?
- Q261 mark · multiple choiceWhich of the following changes to a metal atom happens when it becomes an ion?
- Q271 mark · multiple choiceIn which of the following reactions is sulfur dioxide acting as an oxidizing agent?
- Q281 mark · multiple choiceItem 28 refers to the following apparatus which is used to investigate the relative conductivity of various substances.
If solutions containing
1\text{ mole}of solute per\text{dm}^3of aqueous solution are… - Q291 mark · multiple choiceWhich of the following substances does NOT conduct electricity?
- Q301 mark · multiple choiceWhich of the following observations is expected with the electrolysis of concentrated sodium chloride solution using graphite electrodes?
- Q311 mark · multiple choiceWhich of the following statements BEST describes a catalyst?
- Q321 mark · multiple choiceAn excess of magnesium powder was added to
50\text{ cm}^3of dilute sulfuric acid, and the reaction was allowed to continue until no more hydrogen evolved. Which of the following graphs BEST represents the complete… - Q331 mark · multiple choiceThe condensation of steam is an exothermic reaction. Which of the following statements are true for this reaction?
I. Heat is absorbed.
II. Heat is evolved.
III.
\Delta His negative. - Q341 mark · multiple choiceItem 34 refers to the Haber process for the production of ammonia, according to the equation
\text{N}_2(\text{g}) + 3\text{H}_2(\text{g}) \rightarrow 2\text{NH}_3(\text{g}), \quad \Delta H = -92\text{ kJ mol}^{-1}… - Q351 mark · multiple choiceWhich of the following substances conducts an electric current and remains chemically unchanged?
- Q361 mark · multiple choiceWhen heated, which of the following nitrates decomposes to produce the metal oxide, oxygen and nitrogen dioxide?
- Q371 mark · multiple choiceA recently discovered element is thought to be a metal. Which of the following physical properties would BEST confirm this?
- Q381 mark · multiple choiceAn element that is a non-metal
- Q391 mark · multiple choiceWhich of the following elements can be extracted by chemical reduction?
- Q401 mark · multiple choiceWhich of the following elements would NOT form an acidic oxide when burnt in air?
- Q411 mark · multiple choiceWhich of the following observations is expected when aqueous silver nitrate is added to aqueous potassium chloride?
- Q421 mark · multiple choiceWhich of the following gases is alkaline?
- Q431 mark · multiple choiceAmmonia may be produced in the laboratory by heating a mixture of ammonium chloride and
- Q441 mark · multiple choiceWhich of the aqueous solutions below produces a yellow precipitate with aqueous potassium iodide?
- Q451 mark · multiple choiceWhich of the following elements is the MOST electropositive?
- Q461 mark · multiple choiceALL members of a homologous series have similar
- Q471 mark · multiple choiceTo which homologous series does the following structure belong?
\begin{array}{ccc} \text{H} & \text{H} & \text{H} \\ | & | & | \\ \text{H}-\text{C}-\text{C}-\text{C}-\text{OH} \\ | & | & | \\ \text{H} & \text{H} &… - Q481 mark · multiple choiceItem 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… - Q491 mark · multiple choiceThe compound which has the formula
\text{CH}_3\text{CH}=\text{CH}\text{CH}_2\text{CH}_2\text{CH}_3is - Q501 mark · multiple choiceEthyl ethanoate and fats are classified as esters. From this information it can be deduced that BOTH
- Q511 mark · multiple choiceWhich of the following reactions occurs between propene and bromine?
- Q521 mark · multiple choiceWhich of the following compounds would increase in mass when treated with hydrogen in the presence of nickel?
- Q531 mark · multiple choiceItems 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…
- Q541 mark · multiple choiceItems 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…
- Q551 mark · multiple choice
\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? - Q561 mark · multiple choiceWhen large alkane molecules are cracked, the products are a mixture of
- Q571 mark · multiple choiceThe MAJOR natural source of alkanes and alkenes is
- Q581 mark · multiple choiceThe fermentation of sugars, using glucose as the substrate, can be represented by the equation
- Q591 mark · multiple choiceA protein, X, is hydrolysed, using a dilute acid. The BEST method of separating and identifying the products is by
- Q601 mark · multiple choiceA polymer has the structure
-\text{CHX}-\text{CH}_2-\text{CHX}-\text{CH}_2-\text{CHX}-\text{CH}_2-\text{CHX}-\text{CH}_2-\text{...}The formula of the monomer is