# Write the Observation, and Balanced Equation for the Following Reaction: - Chemistry

Sum

Write the observation, and balanced equation for the following reaction:
Sodium hydroxide is added dropwise to a solution of zinc sulphate, till it is in excess.

#### Solution

Sodium hydroxide when added to zinc sulphate gives gelatinous white precipitate which dissolves in excess of sodium hydroxide.
$\ce{ZnSO4 + 2NaOH -> Zn(OH)2 + Na2SO4}$
$\ce{Zn(OH)2 + 2NaOH -> Na2ZnO2}$

Concept: On Solution of Salts - Sodium Hydroxide on Ammonium Salts
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#### APPEARS IN

Frank ICSE Class 10 Chemistry Part 2
Chapter 4 Analytical Chemistry
Exercise | Q 5.1 | Page 88