MCQ
Non-polar solvent is
- ADimethyl sulphoxide
- ✓Carbon tetrachloride
- CAmmonia
- DEthyl alcohol
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$1.$ The compounds $\mathrm{P}$ and $\mathrm{Q}$ respectively are
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$2.$ The compound $R$ is
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$3.$ The compound $\mathrm{S}$ is
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Give the answer question $1,2$ and $3.$

$A + B \to C + D$
The enthalpy change and activation energy for the reverse reaction $C + D \to A + B$ are respectively