The balanced chemical equation, among the following, is ………………….. 

A) NaOH + Zn → NaZnO + H

B) 2NaOH + Zn → Na ZnO+ H

C) 2NaOH + 2Zn → 2NaZnO + H 

D) NaOH + 2Zn → NaZn O + H

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B) 2NaOH + Zn → Na ZnO+ H

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