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Tollen's reagent is used for the detecti...

Tollen's reagent is used for the detection of aldehyde when a solution of `AgNO_(3)` is added to glucose with `NH_(4)OH` then gluconic acid is formed
`{:(Ag^(+)+e^(-)rarrAg,,,E_(red)^(@) =0.8V),(C_(6)H_(12)O_(6)+H_(2)OrarrC_(6)H_(12)O_(7)("Gluconic acid")+2H^(+)+2e^(-),,,E_(red)^(@)=-0.05V),(Ag(NH_(3))_(2)^(+)+e^(-)rarrAg(s)+2NH_(3),,,E^(@) =- 0.337V):}`
[Use `2.303 xx (RT)/(F) = 0.0592` and `(F)/(RT) = 38.92` at `298K]`
`2Ag^(+) +C_(6)H_(12)O_(6)+H_(2)O rarr 2Ag(s) +C_(6)H_(12)O_(7)+2H^(+)` Find In K of this solution

A

66.13

B

58.38

C

28.3

D

46.29

Text Solution

Verified by Experts

The correct Answer is:
B
`E_("cell")^(@)=(RT)/(nF) ln K`
`(0.8 -0.05)=1/2 xx (0.0592)/(2.303)ln K`
ln K `=((0.8 -0.05)xx 2 xx 2.303)/(0.0592)=58.38`
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