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Al^(3+)(aq)+3e^(-)toAl(s),E^(@)=-1.66V ...

`Al^(3+)(aq)+3e^(-)toAl(s),E^(@)=-1.66V`
`Cu^(2+)(aq)+2e^(-)toCu(s),E^(@)=+0.34V`
मानक परिस्थितियों में इन मानक इलेक्ट्रेड विभव वाली अर्ध अभिक्रिया को संयोजित करने पर उत्पन्न वोल्टता कितनी होगी?

A

1.32V

B

2.00V

C

2.30V

D

4.34V

Text Solution

Verified by Experts

The correct Answer is:
B
सेल निम्न प्रकार होगा
`Al(s)|Al^(3+)`(जलीय)`||Cu^(2+)`(जलीय)`+Cu(s)`
`E_("सेल")^(@)=E_("कैथोड")^@)-E_("एनोड")^(@)`
`=E_(Cu^(2+)//Cu)^(@)-E_(Al^(3+)//Al)^(@)`
`+0.34-(-1.66)=+2.00V`
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