281.

The absolute configuration of

is:

• (2S, 3R)

• (2S, 3S)

• (2R, 3R)

• (2R, 3R)

Which of the vitamins given below is water soluble?

• Vitamin C

• Vitamin D

• Vitamin E

• Vitamin E

Which one of the following bases is not present in DNA?

• Quinoline

• Adenine

• Cytosine

• Cytosine

Synthesis of each molecule of glucose in photosynthesis involves

• 18 molecules of ATP

• 10 molecules of ATP

• 8 molecules of ATP

• 8 molecules of ATP

Which of the following compounds can be detected by Molisch’s test?

• Nitro compounds

• Sugars

• Amines

• Amines

The presence or absence of hydroxy group on which carbon atom of sugar differentiates RNA and DNA.

• 1st

• 2nd

• 3rd

• 3rd

Biuret test is not given by 

• proteins

• carbohydrates

• polypeptides

• polypeptides

Which of the following compounds will behave as a reducing sugar in an aqueous KOH solution?

The two functional groups present in a typical carbohydrate are

• -OH and -COOH

• -CHO and -COOH

• >C = O and - OH

• >C = O and - OH

α-D-(+)-glucose and β-D-(+)-glucose are

• conformers

• epimers

• anomers

• anomers