Subject

Chemistry

Class

NEET Class 12

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

Advertisement

51.

Nitrobenzene on treatment with zinc dust and aqueous ammonium chloride gives

  • C6H5N =N-C6H5

  • C6H5NH2

  • C6H5NO

  • C6H5NHOH.


D.

C6H5NHOH.

When reduced with a neutral reducing agent like zinc dust and aqueous ammonium chloride, nitrobenzene gives phenyl hydroxyl amine.

C6H5NO2 nitobenzene+ Zn + H2O warmNH4Cl C6H5N-OH|Hphenyl hydroxyl amine+ ZnO


Advertisement
52.

Thymine is

  • 5-methyluracil

  • 4-methyluracil

  • 3-methyluracil

  • 1-methyluracil


53.

Lysine is least soluble in water in the pH range

  • 3 to 4

  • 5 to 6

  • 6 to 7

  • 8 to 9.


54.

Methyl-α-D-glucoside and methyl-β-D-glucoside are

  • epimers

  • anomers

  • enantiomers

  • conformational diastereomers.


Advertisement
55.

Which ofthe following compounds has the highest boiling point?

  • CH3CH2CH2Cl

  • CH3CH2CH2CH2Cl

  • CH3CH(CH3)CH2Cl

  • (CH3)3CCl


56.

The correct increasing order of the reactivity of halides for S1 reaction is

  • CH3- CH2- X<(CH3)2CH= X <CH2= CH-CH2- X< PhCH2- X

  • (CH3)2CH-X <CH3-CH2- X < CH2= CH - CH2-X < PhCH2-X

  • PhCH2- X<(CH3)2CH=X<CH3-CH2-X<CH2= CH- CH2- X

  • CH2= CH - CH2- X < Ph- CH2- X <(CH3)2CH-X <CH3-CH2- X


57.

The major product formed in the following reaction is

CH2CH(Cl)CH2-CH2OH aq. KOH

  • CH3CH = CH- CH2OH

  • CH2=CH- CH2- CH2OH

  • CH3-CH|OH-CH2-CH2OH


58.

Assertion : In the iodometric titration starch is used as an indicator.

Reason : Starch is a polysaccharide.

  • If both assertion and reason are true and reason is the correct explanation of the assertion.

  • If both assertion and reason are true but reason is not the correct explanation of the assertion.

  • If assertion is true, but reason is false.

  • Both assertion and reason are false statements.


Advertisement
59.

Assertion: Anilinium chloride is more acidic than ammonium chloride.

Reason : Anilinium ion is resonance-stabilised.

  • If both assertion and reason are true and reason is the correct explanation of the assertion.

  • If both assertion and reason are true but reason is not the correct explanation of the assertion.

  • If assertion is true, but reason is false.

  • Both assertion and reason are false statements.


60.

Assertion : 1,3-butadiene is the monomer for natural rubber.

Reason : Natural rubber is formed through anionic addition polymerization.

  • If both assertion and reason are true and reason is the correct explanation of the assertion.

  • If both assertion and reason are true but reason is not the correct explanation of the assertion.

  • If assertion is true, but reason is false.

  • Both assertion and reason are false statements


Advertisement