Arrange the following compounds in the increasing order of their densities.
A
(I) < (II) < (III) < (IV)
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B
(I) < (III) < (IV) < (II)
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C
(IV) < (III) < (II) < (I)
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D
(II) < (IV) < (III) < (I)
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Solution
The correct option is A (I) < (II) < (III) < (IV)
At constant volume, the density of the compound is directly proportional to Molar mass of the compound. Density, D∝M order of Molar mass, (I)<(II)<(III)<(IV)