Question

Name the products formed when $ZnS{O}_4$ solution is added to NaOH solution.

• A. Zinc hydroxide and sodium sulphate
• B. Sodium zincate and water
• C. Sodium zincate and sodium suphate
• D. Zinc hydroxide and water

Answer 1

The correct option is A

Zinc hydroxide and sodium sulphate

When $ZnS{O}_4$ solution is added to NaOH solution, a white , gelatinous precipitate of zinc hydroxide is formed along with sodium sulphate.

$\underset{Colourless}{ZnS{O}_4}+\underset{Colourless}{2NaOH}\to \underset{White,gelatinousppt.}{Zn(OH{)}_2}+\underset{Colourless}{N{a}_{2}S{O}_4}$