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← JEE Main 2022 · 29 Jun · Shift 1
ChemistryInteger+4 / -1Question 81 of 90

JEE Main 2022 · 29 Jun · Shift 1, Chemistry question 81

Geraniol, a volatile organic compound, is a component of rose oil. The density of the vapour is 0.46 gL−1^{-1} at 257°C and 100 mm Hg. The molar mass of geraniol is ______ g mol−1^{-1}. (Nearest Integer)

[Given : R = 0.082 L atm K−1^{-1} mol−1^{-1}]

Answer and worked solution

Official answer: 152

Molar mass. M=dRTP=0.46×0.082×530100/760≈152M=\dfrac{dRT}P=\dfrac{0.46\times0.082\times530}{100/760}\approx152 g mol−1^{-1}.

Answer: 152