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5 marksAcids, Bases and Salts

CSEC Chemistry · May/June 2007 · Paper 2 · Question 5(b)(i)

Describe appropriate chemical tests, the results of which could be used to determine whether zinc oxide is amphoteric or whether it is an acid anhydride.

To determine if zinc oxide is amphoteric

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Other parts of this question

  1. 5(a)(i)Amphoteric oxide[2 marks]
  2. 5(a)(ii)Acid anhydride[2 marks]
  3. 5(b)(ii)To determine if zinc oxide is an acid anhydride[1 mark]
  4. 5(c)(i)Write the formula for sulphur (IV) oxide.[1 mark]
  5. 5(c)(ii)Write an equation for the reaction between sulphur (IV) oxide and water.[1 mark]
  6. 5(d)(i)Give the name of ONE reagent that could be used for this purpose. Support your answer by writing a chemical equation, using ONE of the named pollutants…[2 marks]
  7. 5(d)(ii)Suggest why the reagent you have named in (d) (i) above should be used in the powdered form.[2 marks]

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