HARDMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryHydrocarbonsAchiever Section

Select the true statement about benzene amongst the following

A.Because of unsaturation benzene easily undergoes

B.There are two types of C – C bonds in benzene

C.There is cyclic delocalisation of pi-electrons in✓ Correct

D.Monesubstitution of benzene gives three isomeric

Explanation

Benzene do not show addition reaction like other unsaturated hydrocarbons. However it show substitution reactions. Due to resonance all the C - C bonds have the same nature, which is possible because of the cyclic delocalisation of π-electrons in benzene. Monosubstitution will give only a single product.

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