Q.

Consider the following pairs of gases A and B.Relative rates of effusion of gases A and B is in the order

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a

I=II

b

I = II < III < IV < V

c

I = II < IV < III < V

d

I < II < III < IV < V

answer is A.

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Detailed Solution

rArB=MBMA  I. =4444=1      II. =2828=1  III. =4832=1.225   IV.=2018=1.054 V.=352349=1.004 ∴I=II
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