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Q.

The number of neutrons in 0.45 g water, assuming that all the hydrogen atoms are $H^{1}$ atoms and all the oxygen atoms are $O^{16}$ atoms. is :

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a

8

b

$1.2 \times 10^{23}$

c

$4.8 \times 10^{24}$

d

0.2

answer is C.

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Detailed Solution

Here, the number of neutrons,

$\frac{0.45}{18} \times 6.023 \times 10^{23} \times 8$

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