Aromatic properties of benzene are proved by
aromatic sextet theory
resonance theory
molecular orbital theory
All of the above
D.
All of the above
The necessary and sufficient conditions for a compound to be aromatic are:
(i) It should be cyclic with alternate single and double bonds and the cyclic -electron cloud should surround all the carbon atoms at the ring.
(ii) It should be planar.
(iii) It should contain (4n + 2) -electrons where, n = 0, 1, 2, 3,.... etc.
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
Alkene which on ozonolysis yields acetone, is
CH2=CH-CH2-CH3
CH3-CH=CH2
CH3-CH=CH-CH3
(CH3)2-C=C-(CH3)2