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Q.

In 1 gram of soild, there are 5×1021 atoms. If one electron is removed from each  of 0.1% of atoms of the soild, the charge gained by the solid is

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a

+0.8C

b

+0.018C

c

+8μC

d

−0.08C

answer is B.

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Detailed Solution

q=0.1100×5×1021×1.6×10−19

=+0.8C

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