MCQ
Electrophilic addition on a carbon-carbon double bond involves the intermediate formation of a more stable carbocation. This statement is called
- ASaytzeff's rule
- BBaeyer's effect
- ✓Markownikoff's rule
- DNone of these
✓
Answer
Correct option: C.
Markownikoff's rule
c
According to Saytzeff rule "In dehydrohalogenation reactions, the preferred product is that alkene which has the greater number of alkyl groups attached to the doubly bonded carbon atoms." For example: The dehydrohalogenation of $2$-bromobutane yields two products $1$-butene and $2$-butene.
According to Saytzeff rule "In dehydrohalogenation reactions, the preferred product is that alkene which has the greater number of alkyl groups attached to the doubly bonded carbon atoms." For example: The dehydrohalogenation of $2$-bromobutane yields two products $1$-butene and $2$-butene.
The Markownikoff's rule states that with the addition of a protic acid $HX$ to an asymmetric alkene, the acid hydrogen $( H )$ gets attached to the carbon with more hydrogen substituents, and the halide $( X )$ group gets attached to the carbon with more alkyl substituents.
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{H\,\,\,\,H} \\
{|\,\,\,\,\,\,\,\,|} \\
{C = C} \\
{|\,\,\,\,\,\,\,\,\,|} \\
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