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An organic compound (P) has carbon = 40%...

An organic compound (P) has carbon = 40%, hydrogen = 6.6%. Its vapour density is 90. It forms penta acyl derivatives. Though it gives positive Fehling's test and positive Tollen's test it does not have -`CHO` group. Compound (P) on oxidation gives two hydroxy acids (Q) and (R ). (Q) is a dihydroxy dicarboxylic acid with formula `C_(4)H_(6)O_(6)` while (R ) is a monocarboxylic acid with formula `C_(2)H_(4)O_(3)`. The compound (P) on methylation followed by oxidation gives another carboxylic acid `C_(8)H_(14)O_(7)`. (S) containing three methoxy groups
The carbohydrate (P) is

A

Glucose

B

Fructose

C

Galactose

D

altose

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Verified by Experts

The correct Answer is:
B
The carbohydrate which gives positive Fehlings test and positive Tollends test but does not has CHO group is Fructose
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An organic compound (P) has carbon = 40%, hydrogen = 6.6%. Its vapour density is 90. It forms penta acyl derivatives. Though it gives positive Fehling's test and positive Tollen's test it does not have - CHO group. Compound (P) on oxidation gives two hydroxy acids (Q) and (R ). (Q) is a dihydroxy dicarboxylic acid with formula C_(4)H_(6)O_(6) while (R ) is a monocarboxylic acid with formula C_(2)H_(4)O_(3) . The compound (P) on methylation followed by oxidation gives another carboxylic acid C_(8)H_(14)O_(7) . (S) containing three methoxy groups The compound (Q) is

An organic compound (P) has carbon = 40%, hydrogen = 6.6%. Its vapour density is 90. It forms penta acyl derivatives. Though it gives positive Fehling's test and positive Tollen's test it does not have - CHO group. Compound (P) on oxidation gives two hydroxy acids (Q) and (R ). (Q) is a dihydroxy dicarboxylic acid with formula C_(4)H_(6)O_(6) while (R ) is a monocarboxylic acid with formula C_(2)H_(4)O_(3) . The compound (P) on methylation followed by oxidation gives another carboxylic acid C_(8)H_(14)O_(7) . (S) containing three methoxy groups The compound (S) is

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AAKASH SERIES-CARBOHYDRATES-Practice Sheet-2
  1. Which does not exhibit mutarotation

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  2. During mutarotation, the structure of the molecule given below changes...

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  3. alpha-maltose can be hydrolysed to glucose according to the following ...

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  4. The ones with beta-glycosidic linkage are:

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  5. Hydrolysis of sucrose is carried out in presence of a mineral acid to ...

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  6. In amylopectin, the glucose molecules are connected by

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  7. Use the equilibrium for glucose shown below to answer questions ...

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  8. Use the equilibrium for glucose shown below to answer questions ...

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  9. Use the equilibrium for glucose shown below to answer questions ...

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  10. An organic compound (P) has carbon = 40%, hydrogen = 6.6%. Its vapour ...

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  11. An organic compound (P) has carbon = 40%, hydrogen = 6.6%. Its vapour ...

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  12. An organic compound (P) has carbon = 40%, hydrogen = 6.6%. Its vapour ...

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  13. Match the following columns

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  14. Match the following columns

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  15. The number of chiral centers present in glucopyranose is

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  16. The total no. of formicacid and formaldehyde molecules obtained, when ...

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  17. The total no. of formic acid and formaldehyde molecules obtained when ...

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  18. The no. of possible optical isomers of fructose are

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  19. How many moles of phenyl hydrazine molecules are required to form osaz...

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  20. The no. of primary hydroxyl groups present in fructo furanose

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