Aromatic properties of benzene are proved by
aromatic sextet theory
resonance theory
molecular orbital theory
All of the above
The correct order of stability of following carbocation is
(III) > (II) > (I) > (IV)
(II) > (III) > (I) > (IV)
(I) > (II) > (III) > (IV)
None of the above
A.
(III) > (II) > (I) > (IV)
Aromatic or aryl ring provides more stable carbonium ion, while aliphatic alkyl groups provides less stability due to +I effect of alkyl group. Therefore, the correct order of stability of carbocation is:-
(III) > (II) > (I) > (IV)
Alkene which on ozonolysis yields acetone, is
CH2=CH-CH2-CH3
CH3-CH=CH2
CH3-CH=CH-CH3
(CH3)2-C=C-(CH3)2