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R-CH(2)-C Cl(2)-R overset(Reag ent)rarrR...

`R-CH_(2)-C Cl_(2)-R overset(Reag ent)rarrR-C-=C-R`
The reagent is

A

`Na`

B

`HCl` in `H_(2)O`

C

`KOH` in `C_(2)H_(5)OH`

D

`Zn` in alcohol.

Text Solution

Verified by Experts

The correct Answer is:
C
Alcoholic `KOH` brings about dehyrohiogenation
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ALLEN-ALKENE, ALKANE & ALKYNE -EXCERSISE-3
  1. R-CH(2)-C Cl(2)-R overset(Reag ent)rarrR-C-=C-R The reagent is

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  2. cannot undergoes claisen condensation.

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  3. Heating of beta-hydroxy acid gives lactones.

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  4. Hunsdiecker reaction involve free radical in intermediate steps.

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  5. Benzoic acid is stronger than methanoic acid but weaker than ethanoic ...

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  6. Acid halides are more reactive than acid amides towards the hydrolysis...

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  7. When sodium benzoate is heated with sodalime, the product formed is

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  8. pK(a) and K(a) of an acid are connected by the relation.......

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  9. Benzoic acid does not undergo Friedel-Crafts reaction due to......... ...

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  10. Hell-Volhard-Zelinsky reaction involves the replacement of an ...........

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  11. Carboxylic acids may be prepared by the reaction of Grigrand reagents ...

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  12. Statement-I: Unlike the gtC=O group of aldehydes and ketones, the C=O ...

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  13. Statement-I: CH(3)COCH(2)COOC(2)H(5) will give iodoform test. Becau...

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  14. Statement-I: Acetic acid does not undergo haloform reaction. Because...

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  15. Statement-I: Benzoic acid on nitration will give m- nitrao benzoic aci...

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  16. Statement-I: Acyl halide are more reactive than acid substance amide t...

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  17. Amides undergo hydrolysis to yield carboxylic acid plus amine on heati...

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  18. Amides undergo hydrolysis to yield carboxylic acid plus amine on heati...

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  19. Amides undergo hydrolysis to yield carboxylic acid plus amine on heati...

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  20. Amides undergo hydrolysis to yield carboxylic acid plus amine on heati...

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  21. Ester gives nucleophilic addition reaction followed by elimination rea...

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