MCQ
A substance containing an equal number of primary, secondary and tertiary carbon atoms is:
- AMesityl Oxide
- ✓Mesitylene
- CMaleic acid
- DMalonic acid
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$2NO_{(g)} + O_{2(g)} \rightleftharpoons 2NO_{2(g)}$
What is $K$ for the reaction,
$NO_{2(g)} \rightleftharpoons \frac{1}{2} N_{2(g)} + O_{2(g)}$

The correct structure of
