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Positive Tollens test Compound (A) is :...

Positive Tollens test Compound (A) is :

A

B

C

D

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The correct Answer is:
C
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An optically active compound A (C_6 H_(12 )O) gives positive test with 2,4-D NP, but negative test with Tollen's reagent. Compound A is

(A): Fructose gives positive Tollen's test. (R) : Fructose is a Ketose.

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

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

Match the following : {:("List - I","List - II"),((A) CH_(3)-CH(OH)-CHO,"(p) Carbohydrate"),((B) HOCH_(2)-CH(OH).CHO,"(q) Amino acid"),((C ) CH_(3)-CH(NH_(2)).COOH,"(r ) Positive Tollen's test"),((D) Ph.CH(CH_(2)NH_(2)).COOH,"(s) Ninhydrint test"):}

Tollen’s reagent is

Which of the following compounds on hydrolysis with aqueous alkali give a product which does not give positive iodoform reaction but gives positive silver mirror test. The compound is

(A) Formic acid reduces Tollen's reagent. (R) Compounds containing free-CHO group reduce Tollen's reagent.

MS CHOUHAN-ALDEHYDES AND KETONES-LEVEL-2
  1. Positive Tollens test Compound (A) is :

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  2. Select the best choice for example (A to L) from the examples (a to n)...

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  3. The following questions refer to the compounds (A to G) shown below :

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  4. Match of the column :

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  5. Complete the following table.

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  6. Consider the following reactions and answer A and B. Suggest a re...

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  7. Yield of each step as actually carried out in the laboratory is given ...

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  8. Degree of unsaturation present in compound (A + B + C) is ?

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  9. Within each set, which compound should be more reactive toward carbony...

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  10. Match the Column (I) and Column (II). (Matrix)

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  11. Consider reactions A through F. Those carbon atoms undergoing change, ...

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  12. Consider the possible formation of an aldehyde or ketone product when ...

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  13. Wittig reaction : The reaction of a phosphorus ylide with an aldehyd...

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  14. Wittig reaction : The reaction of a phosphorus ylide with an aldehyd...

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  15. Wittig reaction : The reaction of a phosphorus ylide with an aldehyd...

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  16. Wittig reaction : The reaction of a phosphorus ylide with an aldehyd...

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  17. Wittig reaction : The reaction of a phosphorus ylide with an aldehyd...

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  18. Wittig reaction : The reaction of a phosphorus ylide with an aldehyd...

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  19. Match the column :

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  20. Reactant (A) is :

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  21. Product (B) is :

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