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JIPMER2004Chemistrys Block Elements

Which of the following dissolves in hot conc. NaOH solution?

Options

  1. AFe
  2. BZn
  3. CCu
  4. DAg

Correct answer

B. Zn

Step-by-step solution

Zinc is quite reactive metal. It dissolves in excess of hot NaOH to give sodium zincate. Zn +2 NaOH sodium zincate Na ₂ ZnO ₂+ H ₂

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