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 Form 3 Nitrogen and Its Compounds Questions and Answers

On heating a pale green solid K, carbon (IV) oxide gas and a black solid m were formed. On reacting K with dilute
hydrochloric acid, carbon (IV) oxide gas and a green solution s were formed. When excess aqueous ammonia was added to solution s , a deep blue solution was formed.
(a) Identify the cation in solid k
(b) Identify the two anions in solution S

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