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Reactivity order of halides of dehydroha...

Reactivity order of halides of dehydrohalogenation is

A

`R-F gt R-Cl gt R-Br gt R-I`

B

`R-I gt R-Br gt R-Cl gt R-F`

C

`R-I gt R-Cl gt R-Br gt R-F`

D

`R-F gt R-I gt R-Br gt R-Cl`

Text Solution

Verified by Experts

The correct Answer is:
B
For alkyl halide with the same R but different halogens, the order of reactivity towards substitution, dehydrohalogenation follows the same order i.e.,
`R-I gt R-Br gt R-Cl gt R-F`
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DINESH PUBLICATION-ORGANIC COMPOUNDS WITH FUNCTIONAL GROUP CONTAINING HALOGENS -Revision Questions From Competitive Exams
  1. Most reactive halide towards S(N^(1)) reactions is

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  2. The set of compounds in which the reactivity of halogen atom in the as...

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  3. Reactivity order of halides of dehydrohalogenation is

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  4. Which of the following is a free radical substitution reaction?

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  5. When CHCI(3) is boiled with NaOH It gives .

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  6. Allyl chloride on dehydrochlorination gives

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  7. o-Toluic acid on reaction with Br(2) + Fe gives

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  8. Among the following the most reactive with alcoholic KOH is .

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  9. Which responds to + ve iodoform test ?

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  10. S(N)1 reaction is faster in

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  11. In which case formation of butane nitrile is possible ?

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  12. Which represents nucleophilic aromatic substitution reaction ?

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  13. The product formed on reation of ethyl alcohol with bleaching powder i...

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  14. Which of the following compounds gives trichloromethane on distilling ...

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  15. Which of the following statements about benzyl chloride is incorrect ?

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  16. tert-Alkyl halides are practically inert to substitution by S(N^(2)) m...

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  17. Alkyl halides react with dialkyl copper reagents to give

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  18. Which of the following undergoes nucleophilic substitution exclusively...

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  19. In which of the following reactions, the product is an ether ?

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  20. When ethyl chloride is heated with AgCN, the main product is :

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