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Compound (A) C(8)H(9)Br. Gives a white p...

Compound (A) `C_(8)H_(9)Br`. Gives a white precipitate when warmed with alcoholic `AgNO_(3)`. Oxidation of (A) gives an acid (B). `C_(8)H_(6)O_(4)`. (B) easily forms anhydride on heating. Identify the compound (A)

A

B

C

D

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The correct Answer is:
D
Since B on heating gives anhydride so B is 1,2 dicarboxylic acid. It contains two Benzylic carbon at 1,2 position so on oxidation it produces 1,2-dicarboxylic acid
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Compund (A)C_(8)H_(9) Br gives a white precipitate when warmed with alcoholic AgNO_(3) Oxidation of (A) gives an acid (B) C_(8) H_(6)O_(4) (B) easily anhydride on heating Identify the compound (A) .

Compound (A) and (B) are isomers having C_(8)H_(10) . On oxidation (A) gives benzoic acid while (B) gives phthalic acid which forms an anhydride (C) on heating. Identify (A), (B) and (C).

An organic compound (A) (C_(8)H_(14)O) forms an oxime and gives a positive haloform reaction. On ozonolysis, it gives acetone and a compound (B) (C_(5)H_(8)O_(2)) . (B) forms a dioxime and on subjecting to oxidation reaction gives an acid (C ) (C_(4)H_(6)O_(4)) . On treatment with excess of ammonia and strong heating, (C ) gives a neutral compound (D) (C_(4)H_(5)O_(2)N) . (D) on distillation with zinc dust forms pyrrloe. Suggest the possible structures of (A), (B), (C ), and (D). Explain the chemical reactions involved.

ALLEN-ALKENE, ALKANE & ALKYNE -EXERCISE-5[A]
  1. Which of the following reagents may be used to distinguish between phe...

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  2. An organic compound A ( mol wt = 180) is acylated with CH3 COCl to get...

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  3. Compound (A) C(8)H(9)Br. Gives a white precipitate when warmed with al...

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  4. In the reaction, CH(3)COOHoverset(L(A)H(4))rarrAoverset(PC(5))rarrBo...

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  5. Sodium phenoxide when heated with CO(2) under pressure at 125^(@) C y...

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  6. The optically inactive compound from the following is :-

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  7. overset("Electrolysis")rarrA A is :-

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  8. In the presence of a small amount of phosphorous, aliphatic carboxylic...

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  9. Determination of the molar mass of acetic acid in benzene using freezi...

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  10. In the following sequence of reactions : "Toluene" overset(KMnO(2))r...

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  11. Reaction - Primary amine +CHCl(3)+KOHrarr product, here product will...

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  12. The compound formed in the positive test for nitrogen with Lassaigne's...

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  13. Which one of the following methods is neither meant for the synthesis ...

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  14. In the chemical reaction CH(3)CH(2)NH(2) + CHCI(3) + 3KOH rarr (A) +...

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  15. In the chemical reactions the compounds (A) and (B) are .

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  16. In the chemical reactions the compounds (A) and (B) are .

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  17. Compound (A) C(8)H(9)Br. Gives a white precipitate when warmed with al...

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  18. An orgainc compound A upon reacting with NH(3) gives B On heating B gi...

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  19. On heating an aliphatic primary amine with chloroform and enthanolic p...

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  20. Considering the basic strength of amines in aqueous sloution which one...

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