MCQ
$1.020g$ of metallic oxide contains $0.540g$ of the metal. If the specific heat of the metal, $M$ is $0.216\ \ce{ cal deg ^{-1} g^{-1}}$. The molecular formula of its oxide is:
  • A
    $\ce{MO}$
  • $\ce{M_2O_3}$
  • C
    $\ce{M_2O_4}$
  • D
    $\ce{M_2O}$

Answer

Correct option: B.
$\ce{M_2O_3}$

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