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An organic compound has an empirical for...

An organic compound has an empirical formula CH,O, its vapour density is 45. The molecular formula of the compounds is

A

`CH_(2)O`

B

`C_(2)H_(5)O`

C

`C_(2)H_(2)O`

D

`C_(3)H_(6)O`

Text Solution

Verified by Experts

The correct Answer is:
D
Mol wt `= 2 xx ` Vap. Density
` = 2 xx 45 = 90`
Empirical formula weight
` = 12 + 2 + 16 = 0`
`therefore " "n = ("mol.wt")/("empirical formula wt.") = (90)/(30) = 3`
`therefore ` Molecular formula of the compounds
` = (CH_(2)O)_(3) = C_(3)H_(6)O_(3)`
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