NEET Haloalkanes and Haloarenes — Set 18

Question 1

What is the product when toluene reacts with $ \ce{Br2} $ in the presence of $ \ce{FeBr3} $?

Accepted Answer

Toluene ($ \ce{C6H5CH3} $) undergoes electrophilic substitution with $ \ce{Br2} $ and $ \ce{FeBr3} $, forming $ \ce{CH3C6H4Br} $ (bromotoluene, mainly para).

Question 2

What is the product when $ \ce{CH3CH2CH2OH} $ reacts with $ \ce{SOCl2} $?

Accepted Answer

Reaction of a primary alcohol like 1-propanol with $ \ce{SOCl2} $ replaces the $ \ce{OH} $ group with $ \ce{Cl} $, forming $ \ce{CH3CH2CH2Cl} $ (1-chloropropane).

Question 3

Which halide has the carbon-halogen bond most susceptible to nucleophilic attack due to steric hindrance?

Accepted Answer

$ \ce{(CH3)3CCH2CH2Cl} $ (primary) has less steric hindrance than tertiary halides, but among the options, its C-Cl bond is most accessible for $ \ce{S_N2} $.

NEET Chemistry: Haloalkanes and Haloarenes — Practice Set 18

Q1. What is the product when toluene reacts with \( \ce{Br2} \) in the presence of \( \ce{FeBr3} \)?

Q2. What is the product when \( \ce{CH3CH2CH2OH} \) reacts with \( \ce{SOCl2} \)?

Q3. Which halide has the carbon-halogen bond most susceptible to nucleophilic attack due to steric hindrance?

Q4. Which reagent converts \( \ce{C6H5NH2} \) to \( \ce{C6H5Cl} \) via a diazonium intermediate?

Q5. What is the product when \( \ce{CH3CH2CH2I} \) reacts with \( \ce{NaOH} \) in water?

Q6. What is the product when \( \ce{CH3CH2CH2Br} \) reacts with \( \ce{AgCN} \) in ethanol?

Q7. What is the product when \( \ce{CH3CH=CHCH3} \) reacts with \( \ce{HCl} \)?

Q8. What is the product when \( \ce{CH3CH2CH2CH2Br} \) reacts with \( \ce{Na} \) in dry ether?

Q9. What is the order of boiling points of \( \ce{CH3CH2CH2F} \), \( \ce{CH3CH2CH2Cl} \), and \( \ce{CH3CH2CH2Br} \)?

Q10. Which of the following does not undergo nucleophilic substitution easily?