Organic Chemistry MCQ

There are ____main types of Isomerism.

• 2

• 1

• 3

• 4

_______________ means different spatial arrangement of a molecule obtained by rotation around C-C single bond?        

• Conformation

• Configuration

• Geometry

• Bonding

_________ is the most stable conformer of Ethane      

• Staggered

• Eclipsed

• sawhorse

• Newman

1.       A rotation of_____  converted Staggered to Eclipsed conformer and vice versa

•  360^oC

• 180^oC

• 90^oC

• 60^oC

The staggered conformations in which the large methyl groups are closer are called...

• Gauche  conformation

• Anti conformation

• Eclipsed

• Staggered

Restriction of rotation about the C-C double bond is responsible for __________ in alkene.

• Structural isomerism

• Stereo isomerism

• Geometrical isomerism

• Optical isomerism

______ isomers are more stable isomers.

•        Trans

• Cis

• Z

• E

1.       Organic Compounds that have the ability to rotate the plane polarized light are said to be

• Reactive Compound.

• Optically Active Compound.

• Rotatory Compound.

• Light Compound.

A carbon bonded to 4 different types of atoms/molecules is called as

• Chiral  Carbon Atom.

• Symmetric Carbon Atom

• Active Carbon Atom

• Asymmetric Carbon Atom

An equimolar mixture of two isomers is said to be

• Equality Mixture.

• Racemic Mixture.

• 50:50 isomer.

• Balance isomer.