Question

1). Possible isomers of monohydric phenol having molecular
formula C7H8O are

(A) 2
(B) 4
(C) 1
(D) 3​

Answer 1

Answer: 3 isomers

Explanation:

The structures are,

2-methyl phenol which is ortho cresol or o-cresol

3-methyl phenol which is meta cresol or m-cresol

4-methyl phenol which is para cresol or o-cresol!!!

Answer 2

Possible isomers of monohydric phenol having molecular  formula $C_7H_8O$ are  3.

Explanation:

• The structures are,

             2-methyl phenol which is ortho cresol or o-cresol

             3-methyl phenol which is meta cresol or m-cresol

             4-methyl phenol which is para cresol or p-cresol

• Isomers are molecules that have the same molecular formula, but have a different arrangement of the atoms in space. For example, both of the following are the same molecule. They are not isomers. Both are butane.

• There are three types of structural isomers: chain isomers, functional group isomers and positional isomers. Chain isomers have the same molecular formula but different arrangements or branches. Functional group isomers have the same formula but different functional groups.

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