Question
Question: When the same amount of zinc is treated separately with excess of sulphuric acid and excess of sodiu...
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 -
A
1 : 1
B
1 : 2
C
2 : 1
D
9 : 4
Answer
1 : 1
Explanation
Solution
Zn + H2SO4 ® ZnSO4 + H2, Zn + 2NaOH
® Na2 ZnO2 + H2