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3 marksPeriodic Table and Periodicity

CSEC Chemistry · May/June 2008 · Paper 2 · Question 2(b)

Figure 3 illustrates an experimental setup used by students to investigate halogen reactivity, involving chlorine gas bubbling through an aqueous potassium bromide solution.

What would the students observe when they conduct the experiment represented in Figure 3? Illustrate your answer by means of an equation.

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Other parts of this question

  1. 2(a)Identify the group in the periodic table in which fluorine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At) are placed. Give ONE reason for your…[2 marks]
  2. 2(c)(i)Deduce whether X and Y are metals or nonmetals.[2 marks]
  3. 2(c)(ii)Based on your answer to (c) (i) above, describe the bonding in Element Y.[2 marks]
  4. 2(c)(iii)Predict the type of bond that would be formed between X and oxygen. Give a reason for your answer.[2 marks]
  5. 2(c)(iv)Based on the information given in Table 3, arrange the elements Mg, X and Y in order of decreasing activity. Explain your answer.[4 marks]

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