Q9 / 150 · MHT CET 2026 (15 April Shift 1) · Chemistry
What is the general molecular formula of alkyl halides?
- A$\text{C}_n\text{H}_{2n+2}\text{X}$
- Correct answerB$\text{C}_n\text{H}_{2n+1}\text{X}$
- C$\text{C}_n\text{H}_{2n}\text{X}$
- D$\text{C}_n\text{H}_{2n-2}\text{X}$
Solution
Alkanes have the general molecular formula $\text{C}_n\text{H}_{2n+2}$.
Alkyl halides are formed by replacing one hydrogen atom of an alkane with a halogen atom ($\text{X}$).
Removing one hydrogen atom from an alkane gives an alkyl group with the general formula $\text{C}_n\text{H}_{2n+1}$.
Attaching a halogen atom to the alkyl group gives the general molecular formula of alkyl halides as $\text{C}_n\text{H}_{2n+1}\text{X}$.
Answer: $\text{C}_n\text{H}_{2n+1}\text{X}$
Alkyl halides are formed by replacing one hydrogen atom of an alkane with a halogen atom ($\text{X}$).
Removing one hydrogen atom from an alkane gives an alkyl group with the general formula $\text{C}_n\text{H}_{2n+1}$.
Attaching a halogen atom to the alkyl group gives the general molecular formula of alkyl halides as $\text{C}_n\text{H}_{2n+1}\text{X}$.
Answer: $\text{C}_n\text{H}_{2n+1}\text{X}$
Hence, the correct answer is option: 'B'.