Statement-I : $M e_{3} + C$ is more stable than $M e_{2} + C H$ and $M e_{2} + C H$ is more stable than the $M e + C H_{2}$ .
Statement-II : Greater the number of hyperconjugative structures, more is the stability of carbocation.

Statement-I is True, Statement-II is True ; Statement-II is a correct explanation for Statement-I

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Statement-I is True, Statement-II is True ; Statement-II is NOT a correct explanation for Statement-I

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Statement-I is True, Statement-II is False

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Statement-I is False, Statement-II is True

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Solution

The correct option is A Statement-I is True, Statement-II is True ; Statement-II is a correct explanation for Statement-I
The stability order of carbocations is $M e_{3} C^{+} > M e_{2} + C H > M e + C H_{2}$ . This is due to hyperconjugation or no bond resonance of adjacent hydrogens with the positive charge. Tertiary carbocation has 3 methyl groups with 9 hyperconjugative hydrogens which makes it most stable.

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Statement-I :Me3+C is more stable than Me2+CH and Me2+CH is more stable than the Me+CH2.Statement-II : Greater the number of hyperconjugative structures, more is the stability of carbocation.

Statement-I : $M e_{3} + C$ is more stable than $M e_{2} + C H$ and $M e_{2} + C H$ is more stable than the $M e + C H_{2}$ .
Statement-II : Greater the number of hyperconjugative structures, more is the stability of carbocation.