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Q.

The mass and charge of one mole of electrons, respectively is

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a

5.48 × 10–7 Kg; 9.65 × 104 Coulomb

b

54.8 × 10–7 Kg; 9.65 × 104 Coulomb

c

5.48 × 10–7 g; 9.65 × 104 Coulomb

d

5.48 × 10–7 Kg; 9.65 × 103 Coulomb

answer is D.

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Detailed Solution

Mass of one mole of electrons = \large 6.023 \times 10^{23} \times 9.1 \times 10^{-28}g

\large = 0.55 \times 10^{-3}g

\large = 0.55 \times 10^{-6}Kg

\large =5.5 \times 10^{-7}Kg

Charge of one mole of electrons = \large 6.023 \times 10^{23} \times 1.602 \times 10^{-19}

= 96500c

= \large 9.65 \times 10^4 c

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