Answer: sp3 hybridised.
- A sp hybridised
- B sp3 hybridised
- C sp2 hybridised
- D sp3d hybridised
Correct answer: B. sp3 hybridised
Explanation: In a haloalkane the halogen is joined to a tetrahedral, sp3 hybridised carbon.
SN2 proceeds in a single step with backside attack and inversion of configuration, while SN1 forms a planar carbocation intermediate first, leading to racemisation.
Concept context
Study carbon-halogen compounds: how they are made, how they react via SN1/SN2 and elimination, their stereochemistry, and their environmental impact.