Question

Which of the following is formed on adding excess of NaOH to a compound containing zinc?

विकल्प

• Sodium zincate

• Zinc hydroxide

• Zinc plumbate

• None of these

Answer 1

Sodium zincate

Explanation:

Zinc compounds react with a little NaOH to give a white gelatinous precipitate of zinc hydroxide, which dissolves in excess NaOH to yield soluble sodium zincate (Na₂ZnO₂).