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Question
Which of the following is formed on adding excess of NaOH to a compound containing zinc?
Options
Sodium zincate
Zinc hydroxide
Zinc plumbate
None of these
MCQ
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Solution
Sodium zincate
Explanation:
Zinc compounds react with a little NaOH to give a white gelatinous precipitate of zinc hydroxide, which dissolves in excess NaOH to yield soluble sodium zincate (Na2ZnO2).
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Chapter 13: Practical Work - Intext Question [Page 273]
