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Chemistry · Oct / Nov 2017 · Paper 11 · Question 22

5070Oxides

Which statement is correct?

  1. AAmmonia is produced when an ammonium salt is warmed with a dilute acid.
  2. BAmphoteric oxides are oxides of certain metals.
  3. CA neutral solution does not contain hydroxide ions.
  4. DSoil with a high pH can be neutralised by adding lime, Ca(OH)2.

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Correct answer: B. Amphoteric oxides are oxides of certain metals.

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