0.24g of volatile liquid upon vaporisation gives 45ml of vapour at NTP .what will be the vapour density of the substance

- 95.39
- 5.993
- 95.93
- 59.93
- 19.93

we know that

Vapor Density = mass of certain volume of vapor / mass of same volume of H_{2}

so,

V.D. = Mass of 1L of vapor / Mass of 1L of H_{2}

here

mass of 1L of vapor = 0.24 x 1000 kg

mass of 1L of H_{2} = volume x density = 45 x 0.089 kg

thus,

V.D. = 0.24 x 1000 / 45 x 0.089

so,

**V.D. = 59.93**

so. correct answer is **option (d).**

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