$1.020 {~g}$ of metallic oxide contains $0.540 {~g}$ of the metal. If the specific heat of the metal, $M$ is $0.216\, {cal}\, {deg}^{-1} {~g}^{-1}$, the molecular formula of its oxide is

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NEET UG CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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1.020 {~g}

of metallic oxide contains

0.540 {~g}

of the metal. If the specific heat of the metal,

M

0.216\, {cal}\, {deg}^{-1} {~g}^{-1}

, the molecular formula of its oxide is

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Correct option: B

{M}_2 {O}_3

Option B (M2O3) is correct because the equivalent weight of the metal is calculated from its specific heat, and this is used to determine the metal's valency and hence the oxide's formula.

NEET UG CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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