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Question: Answered & Verified by Expert
0.2 g of an organic compound contains C, H and O. On combustion, it yields 0.15 g CO2 and 0.12 g H2O . The percentage of C, H and O respectively is
ChemistrySome Basic Concepts of ChemistryNEET
Options:
  • A C = 15%, H = 20%, O = 65%
  • B C = 10%, H = 8.2%, O = 81.8%
  • C C = 12.2%, H = 8.8%, O = 79%
  • D C = 20%, H = 6.66%, O = 73.34%
Solution:
2442 Upvotes Verified Answer
The correct answer is: C = 20%, H = 6.66%, O = 73.34%
% of C=1244×0.150.2×100=20%
% of H=218×0.120.2×100=6.66%
% of O=100-(20+6.66)=73.34%

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