In this type of questions, a statement of assertion 
is followed by a statement of reason
(R). Mark the correct choice as:
Assertion : Alkanes are stable to acids, alkalies, oxidising agents, etc. at room temperature.
Reason: Alkanes are less reactive at room temperature.
Text Solution
Verified by ExpertsB
The electronegativities of carbon (2.6) and hydrogen (2.1) do not differ appreciably. Thus,
the bond electrons in 
are practically equally shared between them and the bond is almost non-polar. The 
bond is completely non-polar and polar reagents find no reaction sites on alkane molecules.
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