5 g of zinc is treated separately with an excess of ( a ) dilute hydrochloric acid and ( b ) aqueous sodium hydroxide. The ratio of the volumes of H 2 evolved in these two reactions is:

Question

5 g of zinc is treated separately with an excess of ( a ) dilute hydrochloric acid and ( b ) aqueous sodium hydroxide. The ratio of the volumes of H 2 evolved in these two reactions is:, 1 : 2, 1 : 1, 1 : 4, 2 : 1

MARKS App · Accepted Answer

Zn + 2 NaOH ⟶ Na 2 ZnO 2 + H 2 Zn + 2 HCl → ZnCI 2 + H 2 According to stoichiometry in both the reactions, equal number of moles of H 2 are evolved

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