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Chemistry - Mole Concept Question with Solution | TestHub

ChemistryMole ConceptMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

0.2 g of an organic compound contains C, H and O. On combustion, it yields 0.15 g $C O_{2}$ and 0.12 g $H_{2} O$ . The percentage of C, H and O respectively is

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Answer:

Solution:

% of $C = \frac{12}{44} \times \frac{0.15}{0.2} \times 100 = 20 %$
% of $H = \frac{2}{18} \times \frac{0.12}{0.2} \times 100 = 6.66 %$
% of $O = 100 - (20 + 6.66) = 73.34 %$

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Mole ConceptSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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