Statement 1: Normal butyl alcohol and $2$ -butanol are isomers.
Statement 2: Isomers vary in the number of neutrons in the nucleus of the atom.

Both Statement 1 and Statement 2 are correct and Statement 2 is the correct explanation of Statement 1.

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Both Statement 1 and Statement 2 are correct and Statement 2 is not the correct explanation of Statement 1.

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Statement 1 is correct but Statement 2 is not correct.

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Statement 1 is not correct but Statement 2 is correct.

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Both the Statement 1 and Statement 2 are not correct.

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Solution

The correct option is E
Statement 1 is correct but Statement 2 is not correct.

Statement 1: Normal butyl alcohol $C H_{3} C H_{2} C H_{2} C H_{2} O H$ and 2 -butanol $C H_{3} C H (O H) - C H_{2} C H_{3}$ are isomers .
Statement 2: Isotopes vary in the number of neutrons in the nucleus of the atom. Isomers have same molecular formula but different arrangement of atoms.

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Statement 1: Normal butyl alcohol and 2-butanol are isomers.Statement 2: Isomers vary in the number of neutrons in the nucleus of the atom.

Statement 1: Normal butyl alcohol and $2$ -butanol are isomers.
Statement 2: Isomers vary in the number of neutrons in the nucleus of the atom.