Chemistry : Organic Chemistry – Some Basic Principles and Techniques

The major product of the given reaction is

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

Which ofthe following alkanes is optically active?

• 3-Methylhexane

• Propane

• 2, 3, 4-Trimethylpentane

• 2-Methylbutane

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

• zero

• 2

• 3

• 4

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]⁺

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

The reagents to carry out the following conversion are

• HgSO₄/dil. H₂SO₄

• BH₃; H₂O₂/NaOH

• OSO₄; HIO₄

• NaNH₂/ CH₃I; HgSO₄/ dil.H₂SO₄

The well-known compounds, (+)- lactic acid and (-)- lactic acid, have the same molecular formula, C₃H₆O₃. The correct relationship between them is:

• constitutional isomerism

• geometrical isomerism

• identicalness

• optical isomerism

Which one of the following characteristics belong to an electrophile?

• It is any species having electron deficiency which reacts at an electron-rich C-centre

• It is any species having electron enrichment, that reacts at an electron-deficient C-centre

• It is cationic in nature

• It is anionic in nature

Among the following structures the one which is not a resonating structure of others is

• I

• II

• III

• IV