Question

27) Assertion - Carbanion has an octet of electron.

Reason - In Carbanion Negatively charged carbon atom is sp3 hybridised.​

Answer 1

Explanation:

Carbanions. A carbanion has a negatively charged, trivalent carbon atom that has eight electrons in its valence shell. ... In contrast to carbocations and carbon radicals, a carbanion is destabilized by electron-donating groups bonded to the anionic center because the center already has an octet of electrons.

Answer 2

Assertion - Carbanion has an octet of electrons.

Reason - In Carbanion Negatively charged carbon atom is sp3 hybridized.​

In this Assertion and the reason, both are true.

• A carbanion is indeed a trivalent atom with 8 electrons within the valence shell that is negatively charged. As a result, a carbanion does not have an electron deficiency.
• Carbanions have the same electrical structure as amines and thus are powerful Lewis bases (electron pair givers).
• Because the anionic center already possesses an octet with electrons, a carbanion is destabilized by electron-donating groups linked to it, unlike carbocations and carbon radicals. Carbocations and radicals have the opposite order of stability as carbanions.
• This molecule includes a packed octet of nitrogen, carbons, oxygen, and fluorine atoms. This molecule's valence electron count is full for all atoms.
• Hybridization of a carbanion's negative charges carbon atom. Unless it is engaging in resonance, the carbon remains sp3 hybridized when given the carbanion, R3C. Its steric number demonstrates this.