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What are A and B in the following sequen...

What are A and B in the following sequence of reactions :
`CH_(3)CH_(2)COOHunderset(Br_(2))overset(P)rarrA, (ii) Aunderset((ii)H^(+))overset((i)Alc.KOH"excess")rarrB`

A

`CH_(3)-underset(Br)underset(|)CH.COOH,CH_(2)=CHCOOH`

B

`CH_(3)CH_(2)COBr, CH_(2)=CHCOOH`

C

`underset(Br)underset(|)CH_(2)CH_(2)COOH,CH_(2)=CH.COOH`

D

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The correct Answer is:
A
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ALLEN-ALKENE, ALKANE & ALKYNE -EXCERSISE-1
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  3. Decreasing order of acidity of p-methoxy benzoic acid (A), p-nitrobenz...

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  4. Benzoic acid reacts with Ca(OH)(2). The product obtained on dry distil...

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  5. In a set of the given reactions, acetic acid yields a product C. CH(...

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  6. The correct reactivity order with the nucleophile is :

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  7. CH(3)-CH(2)-underset(O)underset(||)C-NH(2)overset(A)rarrCH(3)-CH(2)-NH...

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  8. Ethyl acetate on treat,emt wotj judrazome goves-

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  9. Among the following, which is the strongest acid?

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  10. In the Rosenmund reduction, the catalyst used is :

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  11. Which of the following carboxylic acids undergoes decarboxylation easi...

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  12. The reactivities of acid halides (I), anhydrides (II),esters(III) and ...

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  13. In the following sequence of reaction CH(3)CH(2)COCloverset(AlCl(3)...

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  14. Consider the following reaction. underset((ii)H^(+),Delta)overset((...

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  15. Which of the following orders regarding the base strength of a leaving...

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  16. The correct decreasing order of their reactivity towards hydrolysis is

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  17. Kolbe's electrolysis of potassium succinate gives CO(2) and ……………………

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  18. In the following reactions. Identify the compounds A, B, C and D PCl(...

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  19. What are A and B in the following sequence of reactions : CH(3)CH(2...

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  20. Which of the following compound would be expected to decarboxylates wh...

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