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A compound is soluble in conc. H2SO4. It...

A compound is soluble in conc. `H_2SO_4`. It does not decolourise bromine in carbon tetrachloride but is oxidised by chromic abhydride in aqueous sulphuric acid with in two seconds, turning orange solution to blue, green and then opaque. The original compound is

A

A primary alcohol

B

A tertiary alcohol

C

An alkene

D

An ether

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The correct Answer is:
A
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A compound soluble in conc. H_(2)SO_(4) . It does not decolourise bromine in C Cl_(4) but oxidised by chromic anhydride in aqueous H_(2)SO_(4) within two seconds, turning organs solution to blue, green and then opaque. The original compound is :

An organic compound (A) with molecular formula C_8H_8 O forms an orange red precipitate with 2,4 -DNP reagent and gives yellow precipitate on heating with iodine in the presence of sodium hydroxide . It neither reduces Tollen's reagent or Fehling's solution , nor does it decolourise bromine water or Baeyer's reagent. On drastic oxidation with chromic acid, it gives a carboxylic acid (B) having molecular formulae C_7H_6O_2 . Identify the compound (A) and (B) and explain the reactions involved .

An organic compound [A] with molecular formula C_(9)H_(10)O forms an arage-red precipitate [B] with 2,4 DNP reagent. Compound [A] gives yellow precipiatate [C] on heating wihth iodine in the presence of soedium hydroxide along with a colourless compound [D]. The compound [A] does not reduce Tollen's reagent or Fehling's solution nor does it decolourise bromine water or Baeyer's reagent. On drastic oxidation with chromic acid, compound [A] gives a crboxylic acid [E] having molecular formula C_(7)H_(6)O_(2) . Deduce the strcutres of the organic compounds [A] to [E].

When compound (A) is treated with conc. H_(2)SO_(4) , a reddish brown colour gas (B) is evolved. To this solution, a solution of (C ) is added slowly from the side of the test tube, a blue ring is obtained at the junction of two layers due to formation of (D). Compound (D) has formula :

MOTION-ALCOHOLS & ETHERS-EXERCISE -1 OBJECTIVE PROBLEMS JEE MAIN
  1. A compound X with moleuclar formula C(3)H(8)O can be oxidized to a com...

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  2. Which of the following reactions does not involve reduction

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  3. A compound is soluble in conc. H2SO4. It does not decolourise bromine ...

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  4. Tertiary alcohols are resistance to oxidation because:

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  5. Ethanol on heating with acetic acid in the presence of a few drops of ...

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  6. Which of the following alcohols does not give a red colour in Victor M...

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  7. Methanol and ethanol are distinguished by the :

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  8. Dehydration of following alcohols will be in order

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  9. Which of the following will not give the iodoform test?

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  10. The major product of the following reaction sequence is

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  11. In the reaction the major product formed is

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  12. Which of the following can give iodoform test ?

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  13. The reaction of SOCI(2) on alkahols to from alky 1 chlorides gives goo...

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  14. Which of the following alcohol shows fastest reaction with HI ?

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  15. which is most easily dehydrohalogenated ?

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  16. In which case the product is neither a cyclic ether nor open chain sym...

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  17. For making (CH3)3C-O-C2H5 the ideal combination is -

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  18. Mixed ether will not be formed in the reaction-

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  19. The compound obtained by the reaction of diethyl ether with chlorine i...

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  20. Which of the following compounds forms an adduct with diethyl ether th...

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