MCQ
Isomerism in saturated hydrocarbons is due to
- AChange in the valence of carbon
- BChange in the ratio of elements in compounds
- ✓Formation of branches in the chain of $C$ atoms
- DFormation of double bond
$\mathop {C - C - C - C}\limits_{{\rm{straight chain}}} $ $\mathop {C - \mathop C\limits_{\mathop |\limits_C } - C}\limits_{{\rm{Branched chain}}} $
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| Leaving group | Conj. Acid $pK_a$ | $\%$ -yield of $2$-hexene | $\%$ -yield of $1$ -hexene |
| $X = I$ | $- 10$ | $81\%$ | $19\%$ |
| $X = Br$ | $-9$ | $72\%$ | $28\%$ |
| $X = Cl$ | $-7$ | $67\%$ | $33\%$ |
| $X = F$ | $3.2$ | $30\%$ | $70\%$ |
Which of the following statement is (are) true concerning this series of $E_2$ reactions ?
What is $A$
