A) \[Cd(s)+2Ni{{(OH)}_{3}}(s)\to CdO(s)+2Ni(OH)+{{H}_{2}}O(l)\]
B) \[Pb(s)+Pb{{O}_{2}}(s)+2{{H}_{2}}S{{O}_{4}}(aq)\to 2PbS{{O}_{4}}(s)+2{{H}_{2}}O(l)\]
C) \[2{{H}_{2}}(g)+{{O}_{2}}(g)\to 2{{H}_{2}}O(l)\]
D) \[2Fe(s)+{{O}_{2}}(g)+4{{H}^{+}}(aq)\to 2F{{e}^{2+}}(aq)+2{{H}_{2}}O(l)\]
Correct Answer: C
Solution :
Overall reaction - \[2{{H}_{2(g)}}+{{O}_{2(g)}}\to 2{{H}_{2}}O(l)\].
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