Chemistry : Organic Chemistry – Some Basic Principles and Techniques

Which of the following types of reaction occurs when a substituent has got a double bond with evenly distributed π-electron cloud?

• Electrophilic addition

• Nucleophilic addition

• Electrophilic substitution

• Nucleophilic substitution

An organic compound C₃H₅Cl (A) when treated with magnesium in dry ether gives (B) which on treating with CO₂ followed by acid hydrolysis gives C₄H₆O₂ (C). (C) is also obtained on oxidation of a hydrocarbon (D) C₈H₁₂. Structure of A is

• CH₂=CH-CH₂-Cl

• CH₂=C(Cl)-CH₃

• CH(Cl)=CH-CH₃

• 

A compound contains two dissimilar asymmetric C-atoms. The number of optical isomers is

• 1

• 2

• 4

• 8

Which of the following is the strongest nucleophile?

• OH^-

• CH₃O^-

• CH₃S^-

• C₂H₅O^-

Which of the following compound is not aromatic?

• 1, 3-cyclobutadene

• Pyridine

• Furan

• Thiophene

The structure shows

• geometrical isomerism

• optical isomerism

• geometrical and optical isomerism

• tautomerism

What is the correct IUPAC name of

• 4-methoxy-2-nitrobenzaldehyde

• 4-formyl-3-nitroanisole

• 4-methoxy-6-nitrobenzaldehyde

• 2-formyl-5-methoxynitrobenzene

In Kjeldahl's method of estimation of nitrogen, CuSO₄ act as

• oxidising agent

• reducing agent

• catalytic agent

• hydrolysis agent

The above pair is known as

• structural isomers

• geometrical isomers

• erythro steroisomers

• threo stereoisomers

Which of the following compounds can exhibit both geometrical isomerism and enantiomerism?

• CH₃CH₂CCH₃=CH—COOH

• CH₃—CHOH—COOH

• CH₃—CH=CH—CH₃

• CH₃CH₂—CHCH₃—HC=CH—CH₃