Ozonolysis of buta-1,3-diene gives:

1. HCHO and glyoxal

2. ${\mathrm{CH}}_3\mathrm{CHO}$ and glyoxal

3. ${\mathrm{CO}}_2$ and glyoxal

4. HCHO + glyoxal + ${\mathrm{CH}}_3\mathrm{CHO}$

The most suitable reagent among the following that is used to distinguish compound (III) from the rest of the compounds is -

I. ${\mathrm{CH}}_3-\mathrm{C}\equiv \mathrm{C}-{\mathrm{CH}}_3$

II. ${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2-{\mathrm{CH}}_3$

III. ${\mathrm{CH}}_3-{\mathrm{CH}}_2-\mathrm{C}\equiv \mathrm{CH}$

IV. ${\mathrm{CH}}_3-\mathrm{CH}={\mathrm{CH}}_2$

The reaction, 

${\mathrm{C}}_6{\mathrm{H}}_6$ + ${\mathrm{CH}}_3\mathrm{Cl}\underset{{\mathrm{AlCl}}_3}{\overset{\mathrm{Anhydrous}}{\to }}$${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_3$ + HCl

is an example of:

1. Friedel-Crafts reaction

2. Kolbe's synthesis

3. Wurtz's reaction

4. Grignard synthesis

2-Methylpropene and But-1-ene can be distinguished by -

1. Baeyer's reagent

2. Ammoniacal ${\mathrm{AgNO}}_3$

3. ${\mathrm{Br}}_2$ solution 

4. ${\mathrm{O}}_3$, $\mathrm{Zn}/{\mathrm{H}}_2\mathrm{O}$

Nitration of benzene is:

1. nucleophilic substitution

2. electrophilic substitution

3. electrophilic addition

4. nucleophilic addition

Which of the following compounds has the lowest boiling point?

1. ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$

2. ${\mathrm{CH}}_3\mathrm{CH}=\mathrm{CH}-{\mathrm{CH}}_2{\mathrm{CH}}_3$

3. ${\mathrm{CH}}_3\mathrm{CH}=\mathrm{CH}-\mathrm{CH}={\mathrm{CH}}_2$

4. ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$

${\mathrm{CH}}_3-\mathrm{C}\equiv \mathrm{C}-{\mathrm{CH}}_3\stackrel{{\mathrm{NaNH}}_2}{\to }$ X; what is X?

1. ${\mathrm{CH}}_3-{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$

2. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{C}\equiv \mathrm{CH}$

3. 

4. ${\mathrm{CH}}_2=\mathrm{C}=\mathrm{CH}-{\mathrm{CH}}_3$

Acetylene on reacting with hypochlorous acid gives:

1. ${\mathrm{CH}}_2\mathrm{Cl}.\mathrm{CHO}$ 

2. ${\mathrm{ClCH}}_2\mathrm{CHO}$

3. ${\mathrm{Cl}}_2\mathrm{CH}.\mathrm{CHO}$

4. ${\mathrm{ClCH}}_2\mathrm{COOH}$

Benzene reacts with ${\mathrm{CH}}_3\mathrm{Cl}$ in the presence of anhy. ${\mathrm{AlCl}}_3$ to form

1. toluene

2. chlorobenzene

3. benzylchloride

4. xylene

$\mathrm{CH}\equiv \mathrm{CH}\stackrel{{\mathrm{O}}_3/\mathrm{NaOH}}{\to }$X$\stackrel{\mathrm{Zn}/{\mathrm{CH}}_3\mathrm{COOH}}{\to }$Y. Y is:

1. ${\mathrm{CH}}_2\mathrm{OH}-{\mathrm{CH}}_2\mathrm{OH}$ 

2. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}$

3. ${\mathrm{CH}}_3\mathrm{COOH}$ 

4. ${\mathrm{CH}}_3\mathrm{OH}$