Question

what do you observe when ferrous sulphate is added to NaOH solution.

Answer 1

Answer:

It will form sodium sulphate and hydrochloric acid

Observation

The whitish colour of the solution will gradually dissapears forming a dirty green precipitate.

Answer 2

Explanation:

When NaOH is added to ferrous ammonium sulphate solution and warmed, both ferrous ion and ammonium ion separate and exhibit their individual properties.

A green precipitate of Fe(OH)2 is formed and the smell of NH3 gas from (NH4)+ ion is observed.

Hence, it is an example of the formation of a double salt.