In primary alkyl halides the halogen atom is attached to a carbon which is further attached to how many carbon atoms__________________?
Correct answer: C. one
- A. two
- B. three
- C. one
- D. four
Explanation
In a primary alkyl halide, the carbon attached to the halogen is bonded to only one other carbon atom, as in CH3CH2Cl. The classification depends on the number of carbon neighbours of the carbon bearing halogen, not on the total number of carbons in the molecule. Students may choose two because they count the halogen-bearing carbon itself as well.
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About Nomenclature, Structure and Reactivity
Alkyl halides are named by selecting the longest carbon chain and locating the halogen substituent, while their structures are classified as primary, secondary or tertiary. Their reactivity includes nucleophilic substitution and elimination, with the behaviour of leaving groups and the distinction between SN1 and SN2 mechanisms linked to substrate structure.
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