The stability of carbocations follows the order-I- CH33C-II- CH32-COCH3III- CH3CH2CH2-CH2IV- CH3-CHCH2CH3

The correct option is B III Stability of carbocations increases in order: 3^o gt;2^o gt;1^o .So I and II are more stable than IV and IV is more st ...

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Byju's Answer

Standard XII

Chemistry

Structural and Physical Properties of Carbonyls

The stability...

Question

The stability of carbocations follows the order.

I. $(C H_{3})_{3} C^{\oplus}$

II. $(C H_{3})_{2} \oplus C (O C H_{3})$

III. $C H_{3} C H_{2} C H_{2} \oplus C H_{2}$

IV. $C H_{3} \oplus C H C H_{2} C H_{3}$

I I I < I V < I I < I

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I I I < I V < I < I I

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I V < I I I < I I < I

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I V < I I I < I < I I

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Solution

The correct option is B $I I I < I V < I < I I$
Stability of carbocations increases in order: $3^{o} > 2^{o} > 1^{o}$ .
So I and II are more stable than IV and IV is more stable than III.Among I and II, II is more stable than I because $- O C H_{3}$ has more $+ I$ effect than $- C H_{3}$ .
So stability of carbocations follows the order $I I > I > I V > I I I$ .

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Similar questions

Q. The stability of carbanions follows the order.

C H_{3} C H_{2} C H_{2} ⊝ C H_{2}

II.

C H_{3} ⊝ C H C H_{2} C H_{3}

III.

(C H_{3})_{3} C^{⊝}

IV.

C H_{3} ⊝ C (P h) C H_{2} C H_{3}

Q. Consider the following carbocations:
I.

C l_{3} C^{+}

II.

C l_{2} C H^{+}

III.

C l C H_{2}^{+}

IV.

C H_{3}^{+}

The stability sequence follows the order:

Arrange the following carbocations in decreasing order of stability

Q. The decreasing basic character of the following is:
I.

P h O^{⊖}

II.

C H_{3} S^{⊖}

III.

⊖ O H

IV.

M e O^{⊖}

Q. Arrange the following:

C H_{3} C H_{2} C H_{2} C H_{2} C l

(I),

C H_{3} C H_{2} C H C l - C H_{3}

(II),

(C H_{3})_{2} C H C H_{2} C l

(III) and

(C H_{3})_{3} C - C l

(IV) in order of decreasing tendency towards

S_{N} 2

reaction

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The stability of carbocations follows the order.I. (CH3)3C⊕II. (CH3)2⊕C(OCH3)III. CH3CH2CH2⊕CH2IV. CH3⊕CHCH2CH3

The stability of carbocations follows the order.

I. $(C H_{3})_{3} C^{\oplus}$

II. $(C H_{3})_{2} \oplus C (O C H_{3})$

III. $C H_{3} C H_{2} C H_{2} \oplus C H_{2}$

IV. $C H_{3} \oplus C H C H_{2} C H_{3}$