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Question

The empirical formula of a compound is CH2O. If the molecular weight of the compound is 180, the molecular formula is:

A
C6H12O6
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B
C3H6O3
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C
C4H8O2
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D
C5H10O5
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Solution

The correct option is A C6H12O6
The empirical formula is CH2O. Therefore, the empirical weight = 30.
Given, the molecular weight =180 g.
x=Molecular weightEmpirical weight=18030=6
Molecular Formula=(Empirical Formula)x
Molecular Formula=(CH2O)6=C6H12O6

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