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Average molar mass of mixtures, vapour density
NEET level
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mc204
The ratio of the vapour density of
SO
X
2
to that of
CH
X
4
is (S = 32, O = 16, C = 12, H = 1)
A
2
:
1
B
1
:
4
C
4
:
1
D
3
:
1
Answer: C
VD = M/2. For SO2 M = 64 (VD 32); for CH4 M = 16 (VD 8). The ratio is 32 : 8 = 4 : 1.
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