Here I am providing the list of few questions of question paper for Delhi university for MSc Chemistry entrance examination

Q.Diazonium salt can be prepared by reacting nitrous acid with :
Toluene (B) Phenol
Aniline (D) Pyridine

Q Which of the following is an antibiotic ?
Paracetamol (B) Aspirin
Caffeine (D) Penicillin

Q Friedel-Craft’s alkylation proceeds in the presence of :
Lewis acid (B) Lewis base
Peroxides (D) Sodium hydroxide

Q Acetaldehyde reacts with CH3MgI to yield :
Isopropyl alcohol (B) Ethanol
Acetone (D) t-Butyl alcohol
CH3 Br O

Q Oils and fats are esters formed from glycerol and :
Sulphonic acids (B) Long chain aliphatic acids
Aromatic acids (D) α-Amino acids

Q The compound CH3–CH–CH2–CH–C–CH3 has the IUPAC name as :
3-Bromo-5-methyl-2-hexanone (B) 3-Bromo-2-heptanone
4-Bromo-2-methyl-5-hexanone (D) 3-Bromo-4-isopropyl-2-butanone

Q A carboxylic acid can be converted into the corresponding anhydride using :
SOCl2 (B) SO2
Conc. H2SO4 (D) P2O5

Q The first step in the chlorination of methane in the presence of U.V. light is :
Heterolytic fission of chlorine molecule (B) C–H bond cleavage
Homolytic fission of chlorine molecule (D) Formation of a carbocation

Q Which is the correct statement ?
Ethanol should boil at a temperature lower than that for ethane.
Ethanol is less acidic than phenol
Phenol is more acidic than acetic acid
Ethyne is a non-linear molecule.

Q Which is not a true statement ?
Starch is a polysaccharide
Sucrose is a carbohydrate
Fructose and glucose don’t have the same molecular formula
Glucose is a monosaccharide

Q The synthetic resin bakelite can be obtained by using the starting material :
Formic acid (B) Acetic acid
Formamide (D) Formaldehyde

Q Enzymes are biocatalysts belonging to a class of compounds known as :
Alkaloids (B) Steroids
Proteins (D) Polyesters

Q Aromatic sulphonic acids are important compounds for producing :
Soaps (B) Rubber
Nylons (D) Detergents

Q Which of the following is not contributing to the environmental pollution ?
Nitrogen (B) Carbon dioxide
Sulphur dioxide (D) Chlorofluorohydrocarbons

Q Which of the following is most basic ?
O
H2N–C–NH2 (B) C6H5–NH2
O
C2H5–NH2 (D) C6H5–C–NH2

Q Acetanilide is obtained by a reaction of aniline with :
Acetone (B) Acetamide
Methyl chloride (D) Acetyl chloride

Q Which of the following does not undergo Cannizzaro reaction ?
Acetaldehyde (B) Formaldehyde
Trichloroacetaldehyde (D) Benzaldehyde

Q The number of sigma bonds and pi-bonds in CH3–CH=CH2 are respectively :
7, 1 (B) 8, 1
1, 8 (D) 2, 7

Q The compound which cannot undergo dehydrohalogenation is :
Methyl bromide (B) n-Butyl Chloride
Ethyl iodide (D) Isopropyl bromide

Q Which one is an electrophile ?
AlCl3 (B) C2H5NH2
CN¯ (D) C2H5OH