Chemistry : Organic Chemistry – Some Basic Principles and Techniques

The IUPAC name of the following compound is

• 2-ethylpentanol-4

• 3-methylhexanol-3

• 4-methylhexanol-2

• 4-ethylpentanol-2

Amongst the following, the compound that can most readily get sulphonated is :

• benzene

• toluene

• nitrobenzene

• chlorobenzene

(R)-2-Iodobutane is treated with NaI in acetone and allowed to stand for a long time. The product eventually formed is

• (R)-2-iodobutane

• (S)-2-iodobutane

• (±)-2-iodobutane

• (±)-1, 2-diiodobutane

Which ofthe following complexes exists as pair of enantiomers ?

• trans-[Co(en)₂Cl₂]⁺

• [Co(NH₃)₂Cl₂]⁺

• [Co{P(C₂H₅)₃}₂ClBr]

• [Cr(en)₃]³⁺

Which of the following compounds is aromatic in nature?

Which of the following is an electrophile?

• CCl₂

• CH${}_3^{-}$

• H₂O

• NH₃

What is the correct order of basicity among the following compounds ?

• II > I > III > IV

• I > II > III > IV

• III > I > II > IV

• I > III > II > IV

Arrange the following nucleophiles in the decreasing order of nucleophilicity :

(A) CH₃COO^-

(B) CH₃O^-

(C) CN^-

(D) 

• C, B, A, D

• A, B, C, D

• C, C, B, A

• B, C, A, D

Which one of the following is the most stable reactive intermediate?

Assertion : Thiophene present in commercial benzene as an impurity can be removed by shaking the mixture with cold concentrated H₂SO₄.

Reason : Thiophene is a heterocyclic aromatic compound.

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

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

• If assertion is true but reason is false

• If both assertion and reason are false.