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

1. phosphorus pentachloride

2. hypochlorous acid

3. chlorine

4. hydrochloric acid

What ester produces a white crystalline acid when boiled with KOH, cooled, and acidified with conc. HCl?

1. Methyl acetate 

2. Ethyl acetate

3. Ethyl formate 

4. Ethyl benzoate

The compound formed when malonic acid heated with urea, is                  

1. cinnamic acid

2. butyric acid

3. barbituric acid

4. crotonic acid

What compound results from the catalytic dehydrogenation of a primary alcohol?

1. Aldehyde 

2. Ketone 

3. Alkene

4. Acid 

HCHO and HCOOH are distinguished by treating with:

1. Tollens reagent

2. NaHCO₃

3. Fehling's Solution

4. Benedict Solution

The correct acidity order of the following is:

1. (III)>(IV)>(II)>(I)                       

2. (IV)>(III)>(I)>(II)

3. (III)>(II)>(I)>(IV)                       

4. (II)>(III)>(IV)>(I)  

Acetone reacts with iodine (I₂) to form iodoform in the presence of      

1. CaCO₃   

2. NaOH     

3. KOH     

4. MgCO₃

Generally Aldehydes behave as:

1. Oxidising agent

2. Reducing agent

3. Dehydration agent

4. Oxidizing as well as reducing agent

A and B in the following reactions are  

1. A=RR'CH₂CN,              B=NaOH

2. A=RR'C${<}_{\mathrm{COOH}}^{\mathrm{OH}}$ ,          B=CH₃

3. A=RR'C${<}_{\mathrm{COOH}}^{\mathrm{CN}}$ ,          B=CH₃

4. A=RR"C${<}_{\mathrm{OH}}^{\mathrm{CN}}$,              B=LiAlH₄

RCOOH $\to$RCH₂OH. This mode of reduction of an acid to alcohol can be affected only by:

1. Zn/HCl

2. Na-alcohol

3. aluminium isopropoxide and isopropyl alcohol

4. LiAlH₄