Question

Distinguish between the following pairs of compounds using the instructions gven in bracka
1 A lead salt [Pb2+) and a zinc salt [Zn2+] (using excess NH4OH)
2. Alkal and halogens (electronegativity)​

Answer 1

Explanation:

Lead salt gives chalky with precipitates of lead hydroxide with ammonium hydroxide. This precipitates are insoluble in excess.Zinc salt gives gelatinous with precipitates of zinc hydroxide with ammonium hydroxide. This precipitates are soluble in excess.