Chlorobenzene reacts with Mg in dry ether to give a compound (A) which further reacts

with ethanol to yield     

1. phenol                               

2. benzene

3. ethyl benzene                     

4. phenyl ether

Ethyl alcohol is denatured by:

1. methanol and formic acid

2. KCN

3. CH₃OH and C₆H₆

4. CH₃OH and pyridine

The compound B formed in the following sequence of reactions,

CH₃CH₂CH₂OH$\stackrel{{\mathrm{PCl}}_5}{\to }$A$\stackrel{\mathrm{Alc}.\mathrm{NaOH}}{\to }$B will be:

1. propyne                                 

2. propene

3. propanal                                 

4. propane

The boiling point of ethanol is higher than that of dimethyl ether due to the presence of-                                            

1. H-bonding in ethanol

2. H-bonding in dimethyl ether

3. -CH₃ group in ethanol

4. -CH₃ group in dimethyl ether

The correct order of the acidic strength among the following is- 

1. I>II>III                           

2. III>I>II

3. II>III>I                           

4. I>III>II

Tautomerism is not exhibited by:

Which of the following has highest boiling point?

1. Benzene                         

2. Phenol

3. Toluene                           

4. Ethyl benzene

The most acidic compound among the following is- 

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

2. 

3. 

4. 

p-nitrophenol is stronger acid than phenol because nitro group is:

1. Electron withdrawing                       

2. Electron donating

3. Basic                                             

4. Acidic

The -OH group of an alcohol or the -COOH group of a carboxylic acid on can be replaced

by -Cl using

1. phosphorus pentachloride

2. hypochlorous acid

3. chlorine

4. hydrochloric acid