The reduction potential of hydrogen half cell will be negative if :A. `p(H_(2))=1 "atm and" [H^(+)]=1.0M`B. `p(H_(2))=2 "atm and"[H^(+)]=1.0M`.C. `p(H_(2))=2"atm and"[H^(+)]=2.0M`D. `p(H_(2))=1 "atm and" [H^(+)]=2.0M`

The reduction potential of hydrogen half cell will be negative if :A.

1.	The reduction potential of hydrogen half cell will be negative if :A. `p(H_(2))=1 "atm and" [H^(+)]=1.0M`B. `p(H_(2))=2 "atm and"[H^(+)]=1.0M`.C. `p(H_(2))=2"atm and"[H^(+)]=2.0M`D. `p(H_(2))=1 "atm and" [H^(+)]=2.0M`
Answer» Correct Answer - B `2H^(+)+2e^(-)rarrH_(2)` `E_(2H^(+)//H_(2))=E_(2H^(+)//H_(2))^(@)-(0.059)/(2)"log"(p(H_(2)))/([H^(+)]^(2))` `E_(2H^(+)//H_(2))` will be negative if `p(H_(2))gt[H^(+)]^(2)` i.e., `p(H_(2))=2` atm and `[H^(+)]=1`M.

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The reduction potential of hydrogen half cell will be negative if :A. `p(H_(2))=1 "atm and" [H^(+)]=1.0M`B. `p(H_(2))=2 "atm and"[H^(+)]=1.0M`.C. `p(H_(2))=2"atm and"[H^(+)]=2.0M`D. `p(H_(2))=1 "atm and" [H^(+)]=2.0M`

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