Aluminium displaces hydrogen from dilute HCl whereas silver does not. The e.m.f. of a cell prepared by combining `Al//Al^(3+)` and `Ag// Ag^(+)` is 2.46V. The reduction potential of silver electrode is +0.80V. The reduction potential of aluminium electrode isA. `+1.66V`B. `-3.26V`C. `3.26V`D. `-1.66V`

Aluminium displaces hydrogen from dilute HCl whereas silver does not.

1.	Aluminium displaces hydrogen from dilute HCl whereas silver does not. The e.m.f. of a cell prepared by combining `Al//Al^(3+)` and `Ag// Ag^(+)` is 2.46V. The reduction potential of silver electrode is +0.80V. The reduction potential of aluminium electrode isA. `+1.66V`B. `-3.26V`C. `3.26V`D. `-1.66V`
Answer» Correct Answer - D `Al\|Al^(3+)\|\|Ag^(+)\|Ag` `E=E_(Ag^(+)._(//Ag))-E_(Al^(3+)._(//Al))` `E_(Al^(3+_(//Al))=0.80-2.46=-1.66V`

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