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5 marksFunctional Group Analysis, Reactions and Mechanisms

CAPE Chemistry Unit 2 · 2007 · Paper 2 · Question 2(a)

Sodium halides react with concentrated sulfuric acid.

Complete Table 1 by filling in the missing reaction products and observations: (i) reaction product for NaCl, (ii) reaction product for NaBr, (iii) observation for SO2, (iv) reaction product for NaI, and (v) observation for H2S.

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Other parts of this question

  1. 2(b)Suggest ONE reason for the differences in physical states among chlorine (gas), bromine (liquid), and iodine (solid) at room temperature and pressure.[1 mark]
  2. 2(c)Write a balanced equation for the reaction of chlorine with an excess of cold dilute sodium hydroxide, and state the change in oxidation state of chlorine in…[4 marks]

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