The catalyst used in the conversion of benzene into acetophenone is:

1. Anhydrous AlCl₃

2. HNO₃

3. HCl

4. Heating

$\mathrm{Ethyne} \stackrel{?}{\to }$ $\mathrm{Benzene}$ 

The reagent used in the above conversion is:

1. Cr₂O₃

2. Alc. KOH

3. Red hot Fe

4. NaNH₂/liq.NH₃

The products of ozonolysis of 1,2-dimethyl benzene (o-xylene) are -

1. Methylglyoxal, 1, 2-dimethylglyoxal, and glyoxal

2. Methylglyoxal, 1, 3-dimethylglyoxal, and glyoxal

3. Methylglyoxal, 1, 4-dimethylglyoxal, and glyoxal

4. Methylglyoxal, 1, 5-dimethylglyoxal, and glyoxal

Out of benzene, m–dinitrobenzene and toluene, the one that will undergo nitration most easily is -

1. Benzene

2. m–Dinitrobenzene

3. Toluene

4. None of these

Lewis acid(s) that can be used during the ethylation of benzene is/are:

1. ${\mathrm{FeCl}}_3$

2. ${\mathrm{SnCl}}_4$ 

3. ${\mathrm{BF}}_3$

4. All of the above