Question

Q28. An aqueous solution of a compound 'A' gives black precipitate with H2S gas and also gives a white precipitate with dilute HCl which is soluble in hot
water. The compound on heating gives brown NO2 gas with cracking noise. The compound 'A' is
12
(A) AgNO
O (8) Cu(NO3)2
OC) Pb(NO3)2
O (D) Babra​

Answer 1

Answer:

A white precipitate is formed which dissolves in dilute hydrochloric acid and sulphur dioxide gas is also evolved.

$Cu(No)^{3} 2$

Explanation: