6 xx 10^(24) atoms of an element weight ...

`6 xx 10^(24)` atoms of an element weight 200g. If this element forms homodiatomic gas `(X_(2))` then calculate gram molecular mass of `X_(2) (N_(A) = 6 xx 10^(23))`

A

10

B

20

C

30

D

40

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