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Q.

A particular element X can be found in three gaseous forms-mono-atomic, di-atomic and tri-atomic. If density of one of its forms at a pressure of 8.21 atm at 400 k is 18 gm/L, then what would be atomic mass of the element?

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a

72

b

36

c

24

d

144

answer is A, B, C.

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Detailed Solution

PM=dRTM=72(24,36,72)

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