Q.

Boiling point of N2 is                and O2 is

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a

77K , 58K

b

77K , 90K

c

90K , 81 K

d

18K , 90K

answer is B.

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Detailed Solution

Two major components of air are N2 & O2On fractional distillation of pure liquid airN2 is obtained at 77K and O2 at 90K
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