Multiple Choice QuestionsIdentify the correct statements for a ring system to exhibit aromaticity
(i) It must not be planar
(ii) The ring must contain (4n+ 2)Π electrons.
(iii) The ring must be planar.
(iv) It must possess 4n Π electrons.
The correct answer is:
ii, iv
i, ii
i, iv
ii, iii
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
Baeyer's reagent decolourises which of the following?
Alkane
Alkene
Alkene and alkyne both
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
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