In the following reaction sequence:

What is the final product, D?

1.		2.
3.		4.

Nitrobenzene on reaction with conc. HNO₃/H₂SO₄ at 80-100$°$C forms:

1. 1,2-Dinitrobenzene

2. 1,3-Dinitrobenzene

3. 1,4-Dinitrobenzene

4. 1,2,4-Trinitrobenzene

Which of the following can convert 3-Hexyne into trans-3-Hexene?

1. ${\mathrm{H}}_2$ - Pd/ ${\mathrm{BaSO}}_4$

2. Li-Liq. ${\mathrm{NH}}_3$

3. ${\mathrm{H}}_2$ - Pt ${\mathrm{O}}_2$                

4. ${\mathrm{NaBH}}_4$

A compound having the shortest carbon-carbon bond length among the following is :

1. Benzene                                 

2. Ethene

3. Ethyne                                   

4. Ethane

Find the most suitable reagent to distinguish compound (III) from the rest of the compounds.

I. CH₃–C≡C–CH₃

II. CH₃–CH₂–CH₂–CH₃

III. CH₃–CH₂–C≡CH

IV. CH₃–CH=CH₂

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

RCOCl and ${\mathrm{AlCl}}_3$ are used in the Friedel-Crafts reaction.
The electrophile among the following is:

1. ${\mathrm{Cl}}^{+}$                                       

2. RCOCl

3. $\mathrm{R}\stackrel{+}{\mathrm{C}}$O                                     

4. ${\mathrm{R}}^{+}$

Which of the following pairs of reactants is used in the Friedel–Crafts alkylation reaction?

1. \(\mathrm{C}_6 \mathrm{H}_6+\mathrm{NH}_3\)
2. \(\mathrm{C}_6 \mathrm{H}_6+\mathrm{CH}_4\)
3. \(\mathrm{C}_6 \mathrm{H}_6+\mathrm{CH}_3 \mathrm{Cl}\)
4. \(\mathrm{C}_6 \mathrm{H}_6+\mathrm{CH}_3 \mathrm{COCl}\)

A compound that is formed on passing chlorine through propene at 400$°$C is -

1. PVC                       

 2. Allyl chloride  

3. Nickel chloride         

4. 1,2-Dichloro ethane