Question

219. In which of the following compounds the weight percentage of "C"and "H"are 80 and 20
respectively?
1) CH4
2)C2H4
3) C2H6
4) C6H6​

Answer 1

Answer:

Answer is 3 (C2H6)

Explanation:

see mass of C=12 so C2 = 24

and mass of H= 1 so H6 = 6

total mass = 30

percentage of C = 24/30×100 = 80%

percentage of H = 6/30×100 = 20%

So answer is option (3)

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