The order of reactivity of alcohols towards hydrogen halide is :

b e n z y l > 3^{0} > 2^{0} > 1^{0}

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3^{0} > b e n z y l > 2^{0} > 1^{0}

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3^{0} > 2^{0} > 1^{0} > b e n z y l

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3^{0} > 2^{0} > b e n z y l > 1^{0}

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Solution

The correct option is B $3^{0} > b e n z y l > 2^{0} > 1^{0}$

Greater the stability of carbocation formed, greater is the reactivity. Benzyl carbocation is resonance stabilized.

$∴ t e r t i a r y > b e n z y l > s e c o n d a r y > p r i m a r y$

Option B is correct.

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Reactivity of alkyl halides towards SN₁ nucleophilic substitution reaction is:

Q. In the class intervals 10−20, 20−30, the number 20 is included in
(a) 10−20
(b) 20−30
(c) in each of 10−20 and 20−30
(d) in none of 10−20 and 20−30

Choose the correct answer in each of the following questions:
In the class intervals 10-20, 20-30, the number 20 is included in
(a) 10-20
(b) 20-30
(c) in each of 10-20 and 20-30
(d) in none of 10-20 and 20-30

Q. Benzyl chloride is reacted with different nucleophiles

(H O^{-}, C H_{3} C O O^{-}, P h O^{-}, C H_{3} O^{-}) .

Arrange them in the decreasing order of reactivity with Benzyl chloride.

0 - 10, 10 - 20, 20 - 30 . . .

so on are the classes, the lower boundary of the class

20 - 30

is _____

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The order of reactivity of alcohols towards hydrogen halide is :

The correct option is B 30>benzyl>20>10Greater the stability of carbocation formed, greater is the reactivity. Benzyl carbocation is resonance stabilized.∴ tertiary>benzyl>secondary>primaryOption B is correct.

The correct option is B $3^{0} > b e n z y l > 2^{0} > 1^{0}$

Greater the stability of carbocation formed, greater is the reactivity. Benzyl carbocation is resonance stabilized.

$∴ t e r t i a r y > b e n z y l > s e c o n d a r y > p r i m a r y$

Option B is correct.