Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
BITSAT2020ChemistrySome Basic Concepts of ChemistryActual

If 0.2 gram of an organic compound containing carbon, hydrogen and oxygen on combustion, yielded 0.147 gram carbon dioxide and 0.12 gram water. What will be the content of oxygen in the substance?

Options

  1. A73.29 %
  2. B78.45 %
  3. C83.23 %
  4. D89.50 %

Correct answer

A. 73.29 %

Step-by-step solution

% of C = 12 44 0.147 0.2 100=20.045 % % of H = 2 18 0.12 0.2 100=6.666 % % of O =100-(20.045+6.666)=73.29 %

Practice Some Basic Concepts of Chemistry on Quantrex Academy →

More from Some Basic Concepts of Chemistry

1 L closed flask contains a mixture of 4 g of methane and 4.4 g of carbon dioxide. The pressure inside the flask at 27^ C is [Assume ideal behaviour of gases] 2024In which mode of expression, the concentration of a solution remains independent of temperature? 2024A certain metal sulphide, M S₂ , is used extensively as a high temperature lubricant. If MS ₂ is 40.06 % by mass sulphur, metal M has atomic mass. 2022An ideal gaseous mixture of ethane ( C ₂ H ₆ ) and ethene ( C ₂ H ₄ ) occupies 28 litre at 1 atm and 273 ~K . The mixture reacts completely with 128 ~g O ₂ to produce CO ₂ and H ₂ 2020The amount of H ₂ O ₂ present in 1 litre of 1.5 ~N H ₂ O ₂ solution, is: 2020In a compound C , H and N are present in 9 : 1 : 3 . 5 by weight. If molecular weight of compound is 108 , the molecular formula of compound is 2019The empirical formula and molecular mass of a compound are CH 2 O and 180 g respectively. The molecular formula of the compound will be 2018On electrolysis of water, a total of 1 mole of gases is evolved. The amount of water decomposed is 2017 Full Some Basic Concepts of Chemistry list All BITSAT PYQs