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MCQ
Zn2+ ions give a white precipitate with NaOH that:
Unit-18 Qualitative Anaylsis
A is insoluble in excess NaOH
B dissolves in excess NaOH
C turns brown in air
D turns blue in light
Explanation

Zn(OH)2 is amphoteric and dissolves in excess NaOH to form zincate.

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