14) Which one of the following structures DOES NOT have sp2-hybridized carbon centers? A) methyl anion...

14) Which one of the following structures DOES NOT have sp²-hybridized carbon centers?

		A) methyl anion
		B) methyl radical
		C) methyl cation
		D) Benzene molecule

Solutions

Expert Solution

Correct option is A) methyl anion

Explanation:

In case of methyl anion, carbon is bonded to three hydrogen atoms and has one nonbonded pair of electrons giving it negative charge. Thus, the carbon is SP3 hybridized giving it tetrahedral shape so that three bonding pair of electrons and one loan pair of electrons can stay farthest apart.

In case of methyl radical, carbon is bonded to three hydrogen atoms and has one unpaired electron making it radical. Thus, carbon is SP2 hybridized giving it trigonal shape so that all the bonding pair of electrons stay farthest apart and unpaired electron remains as it is in unhybridized p orbital.

In case of methyl cation, carbon is bonded to three hydrogens. Thus, carbon is SP2 hybridized giving it trigonal shape so that all the bonding pair of electrons stay farthest apart and remaining p orbital is vacant.

In case of benzene, carbons are SP2 hybridized as each carbon is attached to two another carbons and one hydrogen. Electron in remaining p orbitals are used to form aromatic pi- electron cloud.

Therefore, only methyl anion does not have sp2-hybridized carbon centers.

queen_honey_blossom answered 1 year ago

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