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Zn + 2NaOH \rightarrow A+ B

A could be : 

Option: 1

ZnO 


Option: 2

NaH 


Option: 3

Na_2ZnO_2


Option: 4

1 and 2 


Answers (1)

best_answer

As we have learnt,

Preparation of Hydrogen: There are a number of methods for preparing dihydrogen from metals and metal hydrides.

  • By the reaction of Zn with aqueous alkali :  Hydrogen can also be prepared by the reaction of zinc with aqueous alkali.

Correct option is 3

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shivangi.shekhar

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