Assertion: The octane number of branched chain hydrocarbon is higher than that of unbranched cha....

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Assertion: The octane number of branched chain hydrocarbon is higher than that of unbranched chain hydrocarbon.
Reasons: The branched chain hydrocarbons are more volatile as compared to unbranched chain hydrocarbons.
(1) If both assertion and reason are true and the reason is the correct explanation of the assertion.
(2) If both assertion and reason are true but reason is not the correct explanation of the assertion.
(3) If assertion is true but reason is false.
(4) If assertion is false but reason is true.


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