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Question: Answered & Verified by Expert
In which of the following reactions, $\mathrm{MgO}$ is not formed?
Chemistrys Block ElementsTS EAMCETTS EAMCET 2005
Options:
  • A $\mathrm{Mg}+\mathrm{CO}_2 \longrightarrow$
  • B $\mathrm{Mg}+$ dil. $\mathrm{HNO}_3 \longrightarrow$
  • C $\mathrm{Mg}+\mathrm{NO} \stackrel{\Delta}{\longrightarrow}$
  • D $\mathrm{Mg}+\mathrm{B}_2 \mathrm{O}_3 \longrightarrow$
Solution:
2509 Upvotes Verified Answer
The correct answer is: $\mathrm{Mg}+$ dil. $\mathrm{HNO}_3 \longrightarrow$
$\begin{aligned}
& \mathrm{Mg}+2 \mathrm{HNO}_3 \rightarrow \mathrm{Mg}\left(\mathrm{NO}_3\right)_2+\mathrm{H}_2 \uparrow \\
& \text { dil. } \\
&
\end{aligned}$
Hence, $\mathrm{MgO}$ is not formed in this reaction.

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