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
An ester is boiled with KOH. The product is cooled and acidified with conc. HCl. A white crystalline acid separates. The ester is
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
Trichloroacetaldehyde, CCl3CHO reacts with chlorobenzene in the presence of sulphuric acid and produces
1.
2.
3.
4.
What is formed when a primary alcohol undergoes catalytic dehydrogenation?
1. Aldehyde
2. Ketone
3. Alkene
4. Acid
The compound which on reduction with gives two diffrent alcohols:
1.
2.
3.
4.
HCHO and HCOOH are distinguished by treating with:
1. Tollens reagent
2. NaHCO3
3. Fehling's Solution
4. Benedict Solution
Lacrymator or tear gas is:
1. C6H5COCl
2. C6H5OC6H5
3. C6H5COCH2Cl
4. C6H5COCH3
Formaldehyde can be distinguished from acetaldehyde by:
1. Fehling's solution
2. Schiff's reagent
3. Ammonia
4. Ammoniacal
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)