Subject

Chemistry

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

41.

During the process of digestion, the proteins present in food materials are hydrolysed in amino acids. The two enzymes involved in the process

Proteins space rightwards arrow with Enzyme space left parenthesis straight A right parenthesis on top space Polypeptides
space space space space space space space space space space space space space space rightwards arrow with Enzyme space left parenthesis straight B right parenthesis on top space Amino space acids comma
are respectively:

  • amylase and maltase

  • diastase and lipase

  • pepsin and trypsin

  • pepsin and trypsin

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42.

The human body does not produce:

  • DNA

  • Vitamins

  • Hormones

  • Hormones

628 Views

43.

[NH(CH2)NHCO(CH2)4CO]n

  • co-polymer

  • addition polymer

  • thermosetting polymer

  • thermosetting polymer

863 Views

44.

A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of alpha-hydroxy acid. The carbonyl compound is:

  • acetaldehyde

  • acetone

  • diethyl ketone

  • diethyl ketone

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45.

Which one of the following is a peptide hormone?

  • Glucagon

  • Testosterone

  • Thyroxin

  • Thyroxin

571 Views

46.

The major organic product in the reaction,

CH3 -O- CH(CH3)2 + HI → Product is:

  • CH3OH + (CH3)2 + CHI

  • ICH2OCH(CH3)2

  • CH3O CI(CH3)2

  • CH3O CI(CH3)2

554 Views

47.

A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of alpha -hydroxy acid. The carbonyl compound is: 

  • CH3-CH2-CH2COCH3

  • (CH3)2C=O

  • CH3CH2CHO

  • CH3CH2CHO

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48.

Self-condensation of two moles of ethyl acetate in presence of sodium ethoxide yields

  • ethyl butyrate

  • acetoacetic ester

  • methyl acetoacetate

  • methyl acetoacetate

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49.

Ethylene oxide when treated with Grignard reagent yields:

  • Secondary alcohol

  • tertiary alcohol

  • cyclopropyl alcohol

  • cyclopropyl alcohol


D.

cyclopropyl alcohol

Ethylene oxide on treatment with a Grignard reagent to give an additive product which on hydrolysis to give primary alcohol as a final product.
 

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50.

Which of the following is more basic than aniline?

  • Diphenylamine

  • Triphenylamine

  • p-nitroaniline

  • p-nitroaniline

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