AP BIOLOGY

BIOCHEMISTRY

ISOMERS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which statement best defines chain isomerism?
A
Existance of chemical compounds with different functional group
B
structural formula that has different location of substituent group
C
Different ways the same number of carbons are connected which is either straight or branched
D
Similar chemical properties with different physical properties such as solubility
Explanation: 

Detailed explanation-1: -Chain isomerism-When two or more compounds have a same molecular formula, but they differ in length of the main chain. Position isomerism-When two or more compounds have same molecular formula but differ in the position of substituent or functional group on the carbon atom. Suggest Corrections.

Detailed explanation-2: -Chain Isomerism: Chain isomerism occurs when there is a difference in the atomic arrangement of the carbon to the carbon chain of a molecule. If two or more compounds having the same type of molecular formula with different main chains, then they are said to exhibit the property of Chain isomerism.

Detailed explanation-3: -CHAIN ISOMERISM The chain isomers have same molecular formula but different types of chains i.e., linear and branched. The chain isomers have almost similar chemical properties but different physical properties. For example, the branched chain isomers have lower boiling points than that of their linear counterparts.

Detailed explanation-4: -In stereochemistry, stereoisomerism, or spatial isomerism, is a form of isomerism in which molecules have the same molecular formula and sequence of bonded atoms (constitution), but differ in the three-dimensional orientations of their atoms in space.

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