Geraniol, a volatile organic compound, is a component of rose oil. The density of the vapour is 0 . 46 gL ^ - 1 at 257 ° C and 100mmHg . The molar mass of geraniol is (Nearest Integer) [Given R = 0 . 082L atm K ^ - 1

Correct answer: 0 Assuming ideal behaviour P = (dRT)/(M) P = (100)/(760)atm, T = 257 + 273 = 530K d = 0 . 46gm / L So M = (0 . 46 × 0 . 082 × 530)/(100) × 760 = 151 . 93 152

JEE Main 202229 JuneMorning Shift

Exam: JEE Main
Year: 2022
Date: 29 June
Shift: Morning Shift
Subject: Chemistry
Chapter: States of Matter

JEE Main 2022 · 29 June · Morning Shift · Chemistry · States of Matter

Geraniol, a volatile organic compound, is a component of rose oil....

Geraniol, a volatile organic compound, is a component of rose oil. The density of the vapour is

0 . 46{gL}^{- 1}

257 ° C

and

100mmHg

. The molar mass of geraniol is (Nearest Integer)
[Given

R = 0 . 082L

atm

{K}^{- 1}{mol}^{- 1}

]

Correct answer

Step-by-step solution

Assuming ideal behaviour $P = \dfrac{dRT}{M}$

$P = \dfrac{100}{760}atm, T = 257 + 273 = 530K$

$d = 0 . 46gm / L$

So $M = \dfrac{0 . 46 \times 0 . 082 \times 530}{100} \times 760$

$= 151 . 93 \approx 152$

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