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The amount of Zinc (at. Wt=65) necessary to produce 224 ml of H2 by the reaction with an acid will be______?

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The amount of Zinc (at. Wt=65) necessary to produce 224 ml of H2 by the reaction with an acid will be______?

A. 0.065gm
B. 0.65gm
C. 6.5gm
D. 7.5gm