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116 mg of a compound on vaporisation in ...

`116 mg` of a compound on vaporisation in a Victor `-` Meyer's apparatus displaced `44.8 mL` of air measured at `S.T.P.` The molecular mass of the compound is

A

(a)`116`

B

(b)`232`

C

(c )`58`

D

(d)`44.8`

Text Solution

Verified by Experts

The correct Answer is:
b
`116 mg` compounds means `116xx10^(-3) gm` compound since
1 mg contain `10^(-3) gm`.
Mol. Wt. of compound
`=("mass of the substance")/("volume of the vapour at S.T.P")xx22400`
`=(116xx10^(-3))/44.8xx22400 =57.99%` or `58.0%`
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