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MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryGaseous statePrevious Year Questions

The ratio of rates of diffusion of helium and methane under same conditions of temperature and pressure will be (CG PMT, Haryana PMT 2009)

A.4 : 1
B.2 : 1✓ Correct
C.1 : 1
D.1 : 2
Explanation

According to Grahm’s law of diffusion, rate of diffusion 1/ Molecular mass 4 4 16 4 2 :1 4 1 CH He CH He M r r M

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