Find out the total number of species where the central atom is $sp^{2}$ hybridised.

ClO₂ , NO₂ , SO₂ , ClO₃ , •CF₃ , •CH₃ , N₂H₄

Question

Find out the total number of species where the central atom is sp 2 hybridised. ClO₂ , NO₂ , SO₂ , ClO₃ , •CF₃ , •CH₃ , N₂H₄

TestHub · Accepted Answer

To determine sp² hybridization, count sigma bonds and lone pairs around the central atom.

ClO₂: 2 sigma bonds, 2 lone pairs = 4 (sp³)

NO₂: 2 sigma bonds, 1 lone pair, 1 odd electron = 3 (sp²)

SO₂: 2 sigma bonds, 1 lone pair = 3 (sp²)

ClO₃: 3 sigma bonds, 1 lone pair = 4 (sp³)

•CF₃: 3 sigma bonds, 1 odd electron = 3 (sp²)

•CH₃: 3 sigma bonds, 1 odd electron = 3 (sp²)

N₂H₄: Each N has 3 sigma bonds, 1 lone pair = 4 (sp³)

Total sp² hybridized species: NO₂, SO₂, •CF₃, •CH₃. There are 4 such species.

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