Assertion $(A)$: Cyclohexane is the most stable cycloalkane.
Reason $(R)$: Cyclopropane and cyclobutane are less stable due to angle strain and torsional strain.
The correct answer is
Reason $(R)$: Cyclopropane and cyclobutane are less stable due to angle strain and torsional strain.
The correct answer is
- ABoth $(A)$ and $(R)$ are true but $(R)$ is not the correct explanation of $(A)$.
- B$(A)$ is true but $(R)$ is not true.
- C$(A)$ is not true but $(R)$ is true.
- DBoth $(A)$ and $(R)$ are true and $(R)$ is the correct explanation of $(A)$.
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Statement $I$ : The boiling point of three isomeric pentanes follows the order
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Statement $II$ : When branching increases,the molecule attains a shape of sphere. This results in smaller surface area for contact,due to which the intermolecular forces between the spherical molecules are weak,thereby lowering the boiling point.
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Statement $I$ : The boiling point of three isomeric pentanes follows the order
$n$-pentane $>$ isopentane $>$ neopentane
Statement $II$ : When branching increases,the molecule attains a shape of sphere. This results in smaller surface area for contact,due to which the intermolecular forces between the spherical molecules are weak,thereby lowering the boiling point.
In the light of the above statements,choose the most appropriate answer from the options given below:
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