A) 1:1
B) 1:2
C) 2:1
D) 9:4
Correct Answer: A
Solution :
[a] \[Zn+{{H}_{2}}S{{O}_{4}}\to ZnS{{O}_{4}}+{{H}_{2}}\] \[Zn+2NaOH\to N{{a}_{2}}Zn{{O}_{2}}+{{H}_{2}}\] \[\therefore \] Ratio of volumes of \[{{H}_{2}}\] evolved is 1 : 1
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