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Chemistry - Mole Concept Question with Solution | TestHub

ChemistryMole ConceptMiscellaneous/MixedEasy2 minPYQ_2008

ChemistryEasysingle choice

What volume of oxygen gas $(O_{2})$ measured at $0^{\circ} C$ and $1 atm$ , is needed to burn completely $1 L$ of propane gas $(C_{3} H_{8})$ measured under the same conditions?NEET 2008 (Screening)

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Answer:

Solution:

Key Idea : Volume of a gas at $STP = 22.4 L$ $C_{3} H_{8} + 5 O_{2} ⟶ 3 CO_{2} + 4 H_{2} O 22.4 L 5 \times 22.4 L$ $∵$ To burn $22.4 L C_{3} H_{8}$ the oxygen required is $= 5 \times 22.4 L$ $∴$ To burn $1 LC_{3} H_{8}$ the oxygen required will be $= \frac{5 \times 22.4}{22.4} = 5 L$

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

⏱ 2mℹ️ Source: PYQ_2008

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