Which of the following molecules would have a carbon-halogen bond most susceptible to nucleophilic substitution ?

(1) 2-Fluorobutane

(2) 2-Chlorobutane

(3) 2-Bromobutane

(4) 2-Iodobutane

When benzyl chloride is treated with ethanolic KCN, the major product formed is:-
(1) benzyl ethyl ether

(2) benzyl alcohol

(3) benzyl cyanide

(4) benzyl isocyanide

Ethyl bromide reacts with lead-sodium alloy to form:-

(1) tetraethyl lead

(2) tetraethyl bromide

(3) both (1) and (2)

(4) none of these

Grignard reagent shows addition on:

1. >C=O

2. -C$\equiv$N

3. >C=S

4. all of these

Which is gem dihalide?

(1) CH₃.CHBr₂

(2) CH₂Br.CH₂Br

(3) CH₃.CHBr.CH₂Br

(4) None of these

Pick up the correct statement about alkyl halides:-

1. They show H-bonding.

2. They are soluble in water.

3. They are soluble in organic solvents.

4. They do not contain any polar bond.

Chlorination of CS₂ gives:

(1) CCl₄

(2) CS₂Cl₂

(3) CH₄

(4) CHCl₃

Sodium ethoxide reacts with ethyl iodide to yield:

1. CH₃CH₃

2. C₂H₅OCH₃

3. C₂H₅OC₂H₅ 

4. none of these

Which set of reagents will produce freon (CCl₂F₂)?

1. C + F₂ + Cl₂ $\to$

2. CH₃Cl + F₂ $\to$

3. CCl₄ + HF $\stackrel{{\mathrm{SbCl}}_5}{\to }$

4. CCl₄ + F₂ $\to$