Chemistry : Organic Chemistry – Some Basic Principles and Techniques

The correct statement(s) about the compound is/are

• The total number of stereoisomes possible for X is 6

• The total number of diastereomers possible for X is 3

• If the stereo chemistry about the double bond is X is trans, the number of enantiomers

• If the stereo chemistry about the double bond in x is, the numberof enantiomers possible to X is 3.

What will be the IUPAC name of given compound?

• 2, 5-diethyl-4-methylhexane

• 3, 4, 6-trimethyloctane

• 2, 5, 6-trimethyloctane

• 3, 5-dimethyl-6-ethylheptane

A mixture of camphor and benzoic acid can be separated by :

• chemical method

• sublimation

• fractional distillation

• extraction with a solvent

Which one of the following contain isopropyl group?

• 2, 2, 3, 3-tetramethylpentane

• 2-methylpentane

• 2, 2, 3-trimethylpentane

• 3, 3-dimethylpentane

The IUPAC name of the compound is:

• 1-ethyl-3, 3-dimethyl cyclochexane

• 3-ethyl-1, 1-dimethyl cyclohexane

• 3-ethyl-5-methyl heptane

• 5-sec-Butyl-4 isopropydecane

The number of chiral carbons atoms present in the molecule is:

• 3

• 4

• 2

• 1

Which of the following statement(s) is /are false about cyclopropane -1, 2 dicarboxylic acid?

• It has two geometrical isomers

• It has three stereoisomers

• All the stereo isomers are optically active

• Only tran isomers show enantio- isomorphism

Which carbocation is most stable ?

• CH₃CH${}_2^{+}$

• C${\mathrm{H}}_3^{+}$

• C₆H₅C${\mathrm{H}}_2^{+}$

• CH₃CH₂C${\mathrm{H}}_2^{+}$

CH₃C(CH₂CH₃) = CH(CH₃) $\underset{{\mathrm{H}}_2}{\overset{\mathrm{catalyst}}{\to }}$ X. No. of optical isomer possible will be

• 2

• 4

• 0

• 3

Which of the following is the correct increasing order of stability of free radicals.

• (CH₃)₂CH⁰ < (CH₃)₂CH⁰ < (C₆H₅)₂⁰CH < (C₆H₅)₃C⁰

• (CH₃)₂CH⁰ < (CH₃)₂C⁰ < (C₆H₅)₃⁰C < (C₆H₅)₂C⁰

• (C₆H₅)₃⁰C < (C₆H₅)₂⁰CH < (CH₃)₃⁰C < (CH₃)₂⁰CH

• (C₆H₅)₂⁰CH < (C₆H₅)₂C⁰ < (CH₃)₃⁰C < (CH₃)₂⁰CH