Sodium hydroxide solution is slowly added and then in excess to z…

MCQ

Sodium hydroxide solution is slowly added and then in excess to zinc sulphate solution.

✓
Sodium Zincate and water is formed at the product side
B
Sodium Hydroxide and water is formed at the product side
C
Sodium Zincate and hydrogen gas is released at the product side
D
Sodium Sulphate and water is formed at the product side

✓

Answer

Correct option: A.

Sodium Zincate and water is formed at the product side

(a) Sodium Zincate and water is formed at the product side
Explanation : Sodium hydroxide solution when slowly added to zinc sulphate solution, a white precipitate of zinc hydroxide is obtained, which is soluble in excess of sodium hydroxide to form a clear solution of sodium zincate. Water (H₂O) is also produced as a by product. Thus sodium zincate and water is formed at the product side.

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Analytical Chemistry Uses of Ammonium Hydroxide and Sodium Hydroxide — Chemistry STD 10 — Question

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