1.

5 g of Zn reacts with (I) Excess of NaOH (II) Dilute HCl, then volume ratio of H2 gas evolved in (I) and (II) is (1) 2 : 1 (2) 1 : 2 (3) 1 : 1 (4) 3 : 1 

Answer»

The answer is (3) 1 : 1

Zn + 2NaOH → Na2ZnO2 + H2

Zn + 2HCl →ZnCl2 + H2

According to stoichiometry in both the reactions, equal number of moles of H2 are evolved.



Discussion

No Comment Found

Related InterviewSolutions