Redox Reactions And Electrochemistry Ques 19

Question: Which of the following reaction is used to make a fuel cell [AIIMS 2003]

Options:

A) $ Cd(s)+2Ni{{(OH)}_3}(s)\to CdO(s)+2Ni(OH)+H_2O(l) $

B) $ Pb(s)+PbO_2(s)+2H_2SO_4(aq)\to 2PbSO_4(s)+2H_2O(l) $

C) $ 2H_2(g)+O_2(g)\to 2H_2O(l) $

D) $ 2Fe(s)+O_2(g)+4{H^{+}}(aq)\to 2F{e^{2+}}(aq)+2H_2O(l) $

Show Answer

Answer:

Correct Answer: C

Solution:

Overall reaction - $ 2{H_{2(g)}}+{O_{2(g)}}\to 2H_2O(l) $ .



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