ICSE Class 10 Chemistry 2023 Solved Paper

Arrange the following according to the instructions given in brackets :

Question : 79

Total: 88

C2H2,C3H6,CH4,C2H4 In the increasing order of the molecular weight)

Solution:

CH4<C2H2<C2H4<C3H8
Molecular weight of
‌CH4=12+4=16
‌C2H2=12×2+2×1=26
‌C2H4=12×2+4=28
‌C3H8=12×3+8=44

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