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Chemistry - Mole Concept Question with Solution | TestHub

ChemistryMole ConceptMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

1.0 g of magnesium is burnt with 0.56 g $O_{2}$ in a closed vessel. Which reactant is left in excess and how much?
(At. wt. Mg $=$ 24; O $=$ 16)

Options:

Answer:

Solution:

$n_{M g} = \frac{w e i g h t}{a t o m i c w e i g h t} = \frac{1}{24} m o l e,$ $n_{O_{2}} = \frac{0.56}{32} m o l e$

$∴$ mass of $M g = 0.0066 \times 24 g = 0.16 g$
$O_{2}$ is Limiting reagent
$M g$ is excess of reagent

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

⏱ 2mℹ️ Source: PYQ_2020

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