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CH(3)CH(2)CH(2)Br overset(KOH)underset("...

`CH_(3)CH_(2)CH_(2)Br overset(KOH)underset("alcohol")rarr CH_(3)CH=CH_(2)`
The above reaction is an example of ………… reaction.

A

substitution

B

elimination

C

addition

D

rearrangement

Text Solution

Verified by Experts

The correct Answer is:
B
The given reaction is an example of elimination reaction, in which one molecule of HBr is eliminated from alkyl halide to give alkene in the presence of alcoholic KOH.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ALKYL HALIDE-PRACTICE EXERCISE (Exercise 1 (TOPICAL PROBLEMS))
  1. In the following reaction RX +A rarr RNC The reactant 'A' is

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  2. In alkaline hydrolysis of a tertiary alkyl halide by aqueous alkali, i...

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  3. CH(3)CH(2)CH(2)Br overset(KOH)underset("alcohol")rarr CH(3)CH=CH(2) ...

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  4. An etheral solution of alkyl halide is heated with sodium metal. The r...

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  5. Which of the following can give a Grignard reagent when reacted with m...

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  6. The hydrolysis of optically active 2-bromobutane with aqueous NaOH res...

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  7. R-X +"Nal" overset("Acetone,"Delta)hArr R-l+NaX The forward reaction...

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  8. Which of the following reaction is incorrect?

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  9. In the reaction C(2)H(5)OH+HX overset(ZnX(2))rarr C(2)H(5)X, the order...

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  10. The alkyl halide that undergoes S(N)1 reaction more readily is

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  11. Which halide does not get hydrolysed by sodium hydroxide?

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  12. When ethyl iodide is heated with dry silver oxide, the product formed ...

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  13. When neopentyl bromide is subjected to Wurtz reaction, the product for...

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  14. The by product formed in the reaction is ROH+PCl(5)rarr RCl+…..+……

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  15. R-X+Nal rarr R-l +NaX The solvent which is used in the above reactio...

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  16. Consider the following compounds. The correct increasing order o...

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  17. Which of the following molecule is achiral?

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  18. Among the following,the most reactive towards alcoholic KOH is

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  19. When 3-phenyl propene is treated with HBr in the presence of proxide, ...

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  20. Hunsdiecker reaction is an example of

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