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Question

Volume occupied by one molecule of water is:

[density =1 g cm3]

A
3.0×1023cm3
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B
5.5×1023cm3
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C
9×1023cm3
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D
6.023×1023cm3
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Solution

The correct option is A 3.0×1023cm3
1cm3=1gm of H2O=118mol of H2O

=118×6×1023 molecules of H2O

1cm3 has 13×1023 molecules of H2O

Volume of 1 molecule of H2O=113×1023cm3

=3×1023cm3

Hence, the correct option is A

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