Addition reaction of alkene [closed]








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[![The correct option is c](https://i.stack.imgur.com/jV65q.jpg)](https://i.stack.imgur.com/jV65q.jpg)


Correct option is option c but option d also forms same compound after 1,2hydride shift.So why only option a and b is possible why not d also??





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> My answer explains why option D does not produce better yield of *1-chloro-1-methylcyclohexane*
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[![img 1](https://i.stack.imgur.com/Im3Vj.png)](https://i.stack.imgur.com/Im3Vj.png)


As you can see *1-methylcyclohex-2-ene* reacts with $\ce{HCl}$ to give two *carbocation intermediates* one has more hyperconjugation structures and other having less.



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> Increasing number of hyperconjugating structures meaning more stable carbocation and number of hyperconjucating structure depends on number of alpha hydrogen present in the carbocation.
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Therefore, *1-chlorocyclohex-2-ene* yield **major** product *1-chloro-3-methylcyclohexane* and **minor** product is *1-chloro-1-methylcyclohexane*



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> Hence option D is not correct, While the other two reactant yields major product *1-chloro-1-methylcyclohexane* see image below
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[![img 2](https://i.stack.imgur.com/EUEvK.png)](https://i.stack.imgur.com/EUEvK.png)



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> from above discussion we can say that option A and B will both produce good yield of *1-chloro-1-methylcyclohexane* so andwer is option C
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