Question

At \(273 \mathrm{~K}\) temperature and \(76 \mathrm{~cm} \mathrm{Hg}\) pressure, the density of a gas is \(1.964 \mathrm{gL}^{-1}\). The gas is
(A) \(\mathrm{CH}_{4}\)
(B) \(\mathrm{CO}\)
(C) \(\mathrm{He}\)
(D) \(\mathrm{CO}_{2}\)

Answer 1

Ans: (D)
 Molar mass of gas \((M)=\frac{d R T}{P}=\frac{1.964 \times 0.0821 \times 273}{1}\) \(=44 \mathrm{~g}\)
Hence, the gas is \(\mathrm{CO}_{2}\)

Answer 2

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Answer 3

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