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Total number of electrons in 81 g of Al^...

Total number of electrons in 81 g of `Al^(3+)` are (Given : at. no. of Al = 13 and at mass = 27 u)

A

`1.806 xx 10^(25)`

B

`6.02 xx 10^(24)`

C

`1.22 xx 10^(25)`

D

`2.347 xx 10^(25)`

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The correct Answer is:
A
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