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Question

The weight of one molecule of a compound of molecular formula C60H122 is:

A
1.2×1020g
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B
5.025×1023g
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C
1.4×1021g
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D
6.023×1020g
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Solution

The correct option is C 1.4×1021g
Weight of 1 mole of C60H122=M.W.=60×12+122×1=842

Number of molecules in 1 mole C60H122=6.023×1023

Weight of one molecule =8426.02×1023gm

=140×1023g=1.4×1021g.

Hence, the correct option is C

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