Question

Fe(OH)₂ is insoluble in ______.

विकल्प

• NaOH

• NH₄OΗ

• H₂O

• Both NaOH and NH₄OΗ

Answer 1

Fe(OH)₂ is insoluble in both NaOH and NH₄OΗ.

Explanation:

The dirty-green ferrous hydroxide [Fe(OH₂)] precipitate remains completely insoluble in excess of both sodium hydroxide (NaOH) and ammonium hydroxide (NH₄OH).