NEET Haloalkanes and Haloarenes — Set 16

Question 1

What is the product when $ \ce{CH3CH2CHOHCH2CH3} $ reacts with $ \ce{SOCl2} $?

Accepted Answer

$ \ce{SOCl2} $ converts 3-pentanol ($ \ce{CH3CH2CHOHCH2CH3} $) to 3-chloropentane ($ \ce{CH3CH2CHClCH2CH3} $) via substitution.

Question 2

Which compound has the IUPAC name 2-bromo-3-methylbutane?

Accepted Answer

2-Bromo-3-methylbutane is a four-carbon chain (butane) with Br on C2 and a methyl group on C3: $ \ce{CH3CHBrCH(CH3)CH3} $.

Question 3

What is the major product when $ \ce{CH3CH=CH2} $ reacts with $ \ce{HBr} $ in the absence of peroxides?

Accepted Answer

According to Markovnikov’s rule, $ \ce{HBr} $ adds to propene ($ \ce{CH3CH=CH2} $) such that H attaches to the less substituted carbon, yielding $ \ce{CH3CHBrCH3} $.

NEET Chemistry: Haloalkanes and Haloarenes — Practice Set 16

Q1. What is the product when \( \ce{CH3CH2CHOHCH2CH3} \) reacts with \( \ce{SOCl2} \)?

Q2. Which compound has the IUPAC name 2-bromo-3-methylbutane?

Q3. What is the major product when \( \ce{CH3CH=CH2} \) reacts with \( \ce{HBr} \) in the absence of peroxides?

Q4. What is the product when \( \ce{CH3CH2CHClCH3} \) reacts with \( \ce{Mg} \) in dry ether, followed by \( \ce{H2O} \)?

Q5. Which compound is formed when aniline is treated with \( \ce{NaNO2} \) and \( \ce{HCl} \), followed by \( \ce{CuCl} \)?

Q6. Which of the following forms a yellow precipitate with \( \ce{AgNO3} \) slowest?

Q7. Which of the following is a geminal dihalide?

Q8. What is the major product when \( \ce{CH3CH2CH=CH2} \) reacts with \( \ce{HI} \) in the absence of peroxides?

Q9. What is the product when \( \ce{CH3CH2I} \) reacts with \( \ce{NaSH} \) in ethanol?

Q10. Which halide reacts with \( \ce{Na} \) in ether to form a six-carbon alkane with a branched structure?