In a series ethane `(CH_(3)-CH_(3))` ethylene `(CH_(2)=CH_(2))` and acetylene `(CH-=CH)` , the C-H bond energy is

In the compound CH_(2)=CH-CH_(2)-CH_(2)-C-=CH the C_(2)-C_(3) bond is of

In the compound CH_(2)=CH-CH_(2)-CH_(2)-C-=CH the C_(2)-C_(3) bond is of

Explain why the C-C bond length in benzene is in between the carbon-carbon bond lenghts of ethylene (CH_(2)=CH_(2)) and ethane (CH_(3)-CH_(3)) respectively.

In the compound CH_(2)= CH- CH_(2) - CH_(2) - C -= CH, " the " C_(2) - CH_(3) bond is of the type

In the compound HC-=C-CH_(2)-CH=CH-CH_(3) , the C_(2)-C_(3) bond is the type of :-

In the compound HC-=C-CH_(2)-CH=CH-CH_(3) , the C_(2)-C_(3) bond is the type of :-

CH_(3) - underset(CH_(3))underset(|) overset(.)(CH) - CH_(3) " "(b) CH_(3) - overset(.)CH_(2) - CH_(3) " "(c) CH_(3) - overset(.)CH_(3) " "(d) overset(.) CH_(4) Compare the oversetC - H bond energy of the above compounds.