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Tertiary alkyl halides are practically i...

Tertiary alkyl halides are practically inert to substitution by `S_(N)^(2)` mechanism because of –

A

insolubility

B

instability

C

inductive effect

D

steric hindrance.

Text Solution

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The correct Answer is:
D
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Read the given passage and answer the questions number 1 to 5 that follow: The substitution reaction of alkyl halide mainly occurs by S_N 1 and S_N 2 mechanism. Whatever mechanism alkyl halides follow for the substitution reaction to occur, the polarity of the carbon halogen bond is responsible for these substitution reactions. The rate of S_N 1 reactions are governed by the stability of carbocation whereas for S_N 2 reactions steric factor is the deciding factor. If the starting material is a chiral compound, we may end up with an inverted product or racemic mixture depending upon the type of mechanism followed by alkyl halide. Cleavage of ethers with HI also governed by steric factor and stability of carbocation, which indicates that in organic chemistry, these two major factors help us in deciding the kind of product formed 1. Predict the stereochemistry of the product formed if an optically active alkyl halide undergoes substitution reaction by S_N 1 mechanism. 2. Name the instrument used for measuring the angle by which the plane polarised light is rotated. 3. Predict the major product formed when 2-Bromopentane reacts with alcoholic KOH. 4. Give one use of CHI_3 5. Write the structures of the products formed when anisole is treated with HI.

MODERN PUBLICATION-HALOALKANES AND HALOARENES-B. MULTIPLE CHOICE QUESTIONS (from competitive Examinations)
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  2. 3-menthyl-pent-2-ene on reaction with HBr in presence of peroxide form...

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  3. The major product obtained in the following reaction is:

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  4. The major product of the following reaction is :

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  5. Tertiary alkyl halides are practically inert to substitution by S(N)^(...

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  6. The number of possible organobromine compounds which can be obtained i...

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  7. Which of the following halides undergoes hydrolysis on warming with "w...

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  8. The compound having longest C-Cl bond is

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  9. The alkyl halides require to prepare by Wurtz reaction are

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  10. The neopentyl halide in ethanol yields alkenes by E(1) mechanism due t...

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  11. The major product of the following reaction is :

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  12. Increasing order of reactivity of the following compounds for S(N)1 su...

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  13. Heating of 2-chloro-l-phenylbutane with EtOK // EtOH gives X as the ma...

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  14. The major product of the following reaction is :

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  15. The correct IUPAC name of the following compound is:

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  16. The major product 'Y' in the following reaction is :

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  17. The major product of the following reaction is :

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  18. The correct statement(s) about the compound given below is (are):

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  19. KI in acetone, undergoes S(N)2 reaction with each of P, Q, R and S. Th...

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  20. In the following reaction, the major product is

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