Question

# When the same amount of zinc is treated separately with excess of sulphuric acid and excess of sodium hydroxide, the ratio of volumes of hydrogen evolved is X:Y. Find the value of XY.

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Solution

## Zn+H2SO4→ZnSO4+H2 Zn+2NaOH→Na2ZnO2H2 The ratio of volumes of H2 evolved in both the cases is 1:1. Hence , 11=1.

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