MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryHydrogenPreparation of Dihydrogen

Zn 2NaOH aq X H -> What is (X) in the above reaction?

A.Zinc oxide

B.Sodium carbonate

C.Sodium zincate✓ Correct

D.None of these

Explanation

Hydrogen can also be prepared by the reaction of zinc with an aqueous alkali. 2 2 2 sodium zincate Zn 2NaOH Na ZnO H ->

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