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 Multiple Choice QuestionsMultiple Choice Questions

1.

Deficiency of which vitamin causes degeneration of spinal cord?

  • E

  • K

  • B12

  • A


2.

One mole of stachyose on hydrolysis yields

  • 1 mole of glucose+ 1 mole of fructose+ 2 mole of galactose

  • 2 mole of glucose + 1 mole of fructose + 1 mole of galactose

  • 1 mole of glucose+ 2 mole of fructose+ 1 mole of galactose

  • 2 mole of glucose+ 2 mole of fructose


3.

The absolute configuration of

is:

  • (2S, 3R)

  • (2S, 3S)

  • (2R, 3R)

  • (2R, 3R)

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4.

Which of the vitamins given below is water soluble?

  • Vitamin C

  • Vitamin D

  • Vitamin E

  • Vitamin E

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5.

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

  • Quinoline

  • Adenine

  • Cytosine

  • Cytosine

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6.

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

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7.

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

  • Nitro compounds

  • Sugars

  • Amines

  • Amines


B.

Sugars

Molisch’s Test: when a drop or two of the alcoholic solution of α–naphthol is added to sugar solution and then conc. H2SO4 is added along the sides of the test tube, the formation of violet ring takes place at the junction of two liquids.

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8.

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

  • 1st

  • 2nd

  • 3rd

  • 3rd

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9.

Biuret test is not given by 

  • proteins

  • carbohydrates

  • polypeptides

  • polypeptides

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10.

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

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