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CBSE

Subject

Chemistry
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NEET Chemistry : Organic Chemistry – Some Basic Principles and Techniques

Multiple Choice Questions

171.

The major product of the given reaction is



172.

Among the following, the achiral amino acid is

  • 2-ethylalanine

  • 2-methylglycine

  • 2-hydroxymethyl serine

  • tryptophan



173.

Nitrobenzene gives N-phenylhydroxylamine by

  • Sn/HCl

  • H2/Pd-C

  • Zn/NaOH

  • Zn/NH4Cl



174.

In the Lassaigne's test for the detection of nitrogen in an organic compound, the appearance of blue coloured compound is due to

  • ferric ferricyanide

  • ferrous ferricyanide

  • ferric ferrocyanide

  • ferrous ferrocyanide



175.

The total number of aromatic species generated in the following reactions is

  • zero

  • 2

  • 3

  • 4



176.

The reagents to carry out the following conversion are

  • HgSO4/dil. H2SO4

  • BH3; H2O2/NaOH

  • OSO4; HIO4

  • NaNH2/ CH3I; HgSO4/ dil.H2SO4



177.

Which ofthe following alkanes is optically active?

  • 3-Methylhexane

  • Propane

  • 2, 3, 4-Trimethylpentane

  • 2-Methylbutane



178.

Optical isomerism is exhibited by (ox= oxalate anion; en= ethylenediamine).

  • cis-[CrCl2(ox)2]3-

  • [Co(en)3]3+

  • trans-[CrCl2(ox)2]3-

  • [Co(ox) (en)2]+



179.

Assertion : Cis-1,3-dihydroxycyclohexane exists in boat conformation.

Reason : In the chair form, there will not be hydrogen bonding between the two hydroxyl groups.

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

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

  • If assertion is true but reason is false.

  • If both assertion and reason are false.



180.

The IUPAC name of the following molecule is

  • 5,6-dimethylhept-2-ene

  • 2,3-dimethylhept-5-ene

  • 5,6-dimethylhept-3-ene

  • 5-iso-propylhex-2-ene



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