1.

A compound A on heating with caustic soda solution liberates a gas B which gives white fumes on exposure to HCl gas. Heating is continued to expel the gas completely. The resultant alkaline solution again liberates the same gas B when heated with Zn powder. However, the compound A when heated alone does not evolve any gas. Identify A and B.

Answer»

`{:( A , B ) , ( AgNO_(3) , NO_(2)):}`
`{:( A , B ) , ( NH_(4)OH , NH_(3)):}`
`{:( A , B ) , ( NH_(4)OH_(3) , NH_(3)):}`
`{:( A , B ) , ( BaSO_(4) , H_(2) S):}`

Solution :`A : NH_(4) NO_(3) , B : NH_(3)`


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