The given apparatus is used to study the diffusion of a few gases at the same temperature and pressure. In which of the following pairs, gases would diffuse into the vacuum with different speeds? I. `CO and SO_2 ` II. `CO and N_2` III. `NH_3 and N_2 ` IV `CO_2 and CH_4` (Given : Atomic mass of H = 1 u , C= 12 , N= 14 u, S= 32 u, O= 16 u)
A
I, III and IV only
B
I and IV only
C
II only
D
I,II,III and IV
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The correct Answer is:
A
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