NEET Haloalkanes and Haloarenes — Set 1

Question 1

What is the major product when $ \ce{CH3CH2CH2CH2CH3} $ reacts with $ \ce{Cl2} $ in sunlight?

Accepted Answer

Chlorination of pentane favors the secondary position (C2/C4) due to stability, forming $ \ce{CH3CHClCH2CH2CH3} $ (2-chloropentane) as the major product.

Question 2

Which of the following has the highest dipole moment?

Accepted Answer

Dipole moment depends on electronegativity difference and bond length. $ \ce{CH3F} $ has the highest dipole moment due to fluorine’s high electronegativity.

Question 3

What is the IUPAC name of $ \ce{CH3CH(Cl)CH2CH3} $?

Accepted Answer

The compound has a four-carbon chain with chlorine on the second carbon. The parent chain is butane, so the name is 2-chlorobutane.

NEET Chemistry: Haloalkanes and Haloarenes — Practice Set 1

Q1. What is the major product when \( \ce{CH3CH2CH2CH2CH3} \) reacts with \( \ce{Cl2} \) in sunlight?

Q2. Which of the following has the highest dipole moment?

Q3. What is the IUPAC name of \( \ce{CH3CH(Cl)CH2CH3} \)?

Q4. What is the product when \( \ce{CH3CH2CHClCH3} \) reacts with alcoholic \( \ce{KOH} \)?

Q5. Which compound has the IUPAC name 3-chloro-2-methylpentane?

Q6. Which of the following is an aryl halide?

Q7. What is the product when \( \ce{CH3CH2CH2Cl} \) reacts with \( \ce{NaI} \) in acetone?

Q8. Which halide is a vicinal dihalide?

Q9. What is the product when benzene reacts with \( \ce{(CH3)2CHCl} \) and \( \ce{AlCl3} \)?

Q10. What is the major product when \( \ce{CH3CH2CH2CH2OH} \) reacts with \( \ce{HI} \) in the presence of red phosphorus?