Carbon atom in carbene is in `sp^(2)` hybridisation

The negatively charged carbon atom in the carbanion is in sp^(3) hybridisation. Its shape is pyramidal or tetrahedral with one lone pair

The positively charged carbon atom in the carbocation is in sp^(2) hybridisation. It is trigonal planar in shape

Alkyl free radicals are planar and the central carbon atom is in sp^(2) hybridisation

Carbon atoms show sp^(2) hybridisation in compounds A and B. A decolourises alkaline potassium pemanganate solution whereas B cannot decolourise the solution. Then A and B are

List -1 " " List -2 A. NH_(4)^(+)" "1. sp^(3) hybridisation, two Ione pair B. H_(3)O^(+)" "2. sp^(2) hybridisation, one Ione pair C. XeO_(3)" "3. sp^(3) hybridisation, no Ione pair D. SO_(3)" "4. sp^(3) hybridisation, one Ione pair " "5. sp^(2) hybridisation no Ione pair The correct match is

(A):Ethers are relatively inert when compared to C_(2)H_(5)OH . (R): In ethyl alcohol both carbon and oxygen undergo sp^(3) hybridisation.

What evidence that you can give to say that oxygen atom in phenol is sp^2 hybridised.

The number of atoms which are sp^(2) hybridised in aniline is