Sodium hydroxide is added drop wise and then in excess to a solution of copper sulphate. State the observation
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Answer:When sodium hydroxide solution is added drop by drop to zinc sulphate solution a white precipitate is formed which is soluble in excess of sodium hydroxide.
ZnSO
4
+
2NaOH→
Zn(OH)
2
+
Na
2
SO
4
Zn(OH)
2
+
2NaOH→
Na
2
ZnO
2
+
2H
2
O
Therefore, option A is correct.
Explanation:
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