Some Basic Principles Of Organic Chemistry Question 60

Question: 0.24 g of an organic compound gave 0.22 g CO2 on complete combustion. If it contains 1.66 % hydrogen, then the percentage of C and O will be [MP PET 1986]

Options:

A) 12.5 and 36.6

B) 25 and 75

C) 25 and 36.6

D) 25 and 80

Show Answer

Answer:

Correct Answer: B

Solution:

% of C = 1244×Mass of CO2Mass of substance×100 = 12×0.2244×0.24×100 = 25; C = 25, H = 1.66 Total = 26.6 = 100 - 26.6 = 73.4.



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