Subject

Chemistry

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

31.

The correct order of acid strength is

  • HClO < HClO2 < HClO3 < HClO4

  • HClO4 < HClO < HClO2 < HClO3

  • HClO2 < HClO3 < HClO4 < HClO

  • HClO4 < HClO3 < HClO2 < HClO


32.

The main reason for larger number of oxidation states exhibited by the actinides than the corresponding lanthanides, is

  • lesser energy difference between 5f and 6d orbitals than between 4f and 5d orbitals

  • larger atomic size of actinides than the lanthanide

  • more energy difference between 5f and 6d orbitals than between 4f and 5d orbitals

  • greater reactive nature of the actinides than the lanthanides


33.

Aniline in a set of reactions yielded a product D

The structure of the product D would be

  • C6H5CH2NH2

  • C6H5NHCH2CH3

  • C6H5NHOH

  • C6H5CH2OH


34.

In a set of reactions, acetic acid yielded a product D.

CH3COOH SOCl2  A anhyd. AlCl3Benzene B HCN C HOH  D

The structure of D would be


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35.

The major organic product formed from the following reaction (ii) LiAlH4 (iii) H2O(i) CH3NH2 ... is


36.

The monomer of the polymer

 

  • H2C = C(CH3)2

  • (CH3)2C = C(CH3)2

  • CH3CH = CH CH3

  • CH3CH = CH2


37.

Electrolytic reduction of nitrobenzene in weakly acidic medium gives

  • aniline

  • nitrosobenzene

  • N-phenylhydroxylamine

  • p-hydroxyaniline


38.

Which of the following undergoes nucleophilic substitution exclusively by SN1 mechanism?

  • Benzyl chloride

  • Ethyl chloride

  • Chlorobenzene

  • lsopropyl chloride


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39.

Which functional group participates in disulphide bond formation in proteins?

  • Thiolactone

  • Thiol

  • Thioether

  • Thioester


B.

Thiol

Disulphide bond may be reduced to thiol by means of reagents, such as, NaBH4, which shows the presence of thiol group in disulphide bond formation.


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40.

The chirality of the compound

  • R

  • S

  • Z

  • E


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