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(A) alpha-D (+) Glucose and beta-D(+) - ...

(A) `alpha`-D (+) Glucose and `beta-D(+)` - Glucose are enantiomers.
(R) `alpha-D(+)` Glucose and `beta-D(+)`- Glucose are mirror images.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are false

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-BIOMOLECULES-OBJECTIVE EXERCISE-4 (ASSERTION (A) & REASON (R) TYPE QUESTIONS :)
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  2. (A) Two different hexoses may give the same osazone. (R) Different H...

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  3. (A) alpha-D (+) Glucose and beta-D(+) - Glucose are enantiomers. (R)...

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  4. (A) Reduction of glucose with sodium borohydride gives sorbitol. (R)...

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  5. (A) Glucose and fructose give the same osazone. (R) Glucose and fruc...

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

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  7. (A) Cane sugar undergoes inversion in aqueous solution. (R) Cane sug...

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  8. (A) C6 H(10) O5 is a carbohydrates. (R) Most of the carbohydrates ha...

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  9. (A) Lactose is a reducing sugar. (R) Lactose contains glucose and ga...

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  10. (A) Lactose is a reducing Sugar (R) Lactose if formed by glucosidic ...

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  11. (A) D-Glucose and D-Mannose form identical osazone on reaction with ex...

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  12. (A) Sucrose is reducing sugar where as maltose is non-reducing sugar. ...

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  13. (A) Glucose gives a reddish-brown ppt with Fehling's solution. (R) R...

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  14. (A) Sucrose is a non-reducing carbohydrate. (R) In sucrose both the ...

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  15. (A) Glycogen is known as animal starch. (R) The structure of glycoge...

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  16. (A) Acetic acid fit into Cx(H2O)y gneral formula of carbohydrates. ...

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  17. (A) Honey has been used for a long time as an instant source of energy...

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  18. (A) Starch gives blue colour with iodine. (R) Starch form complex wi...

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