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Q.

The charge on 1 g-ion of Al3+ is : (NA= Avogadro's umber, e= charge on one electron)

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a

13×NAe Coulomb

b

3×NAe Coulomb

c

19×NAe Coulomb

d

127NAe Coulomb

answer is D.

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Detailed Solution

In 1 gram of ion,
1g−ion=1
mole;
 1g 1×NA×3×e
Thus, option d is correct.

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