Question

The rotation around c-c bond is not completely free for single bonds in conformers.identify the factor responsible?

Answer 1

Answer:

because of the steric hindrance and repulsion between the two large group attached to the carbon.

another reason can be stability of the conformer

Answer 2

Answer:

The rotation around c-c bond is not completely free for single bonds in conformers due to torsional strain.

Explanation:

Conformers are nothing but isomers having  same bond connectivity sequence.This can also be inter converted by rotation around single bond.

In certain conformers the c-c bond is not completely free to rotate due to torsional strain that creates barrier to rotation.this barrier must be overcome by the bond to rotate from one staggered conformation to another.This rotational barrier will happen at extremely cold temperatures and not at normal temperature in which the carbon-carbon bond is constantly rotating.

to know more,

With the help of magnetic compass wires battery and empty Matchbox make a test write various steps of construction​

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