Delhi University MSc Chemistry Entrance Exam Question Paper

Will you please provide the question paper of Delhi University MSc Chemistry entrance Exam ?

[Kiran Chandar]

Here is the list of few questions of Delhi University MSc Chemistry entrance Exam paper which you are looking for .


1. Which of the following is an antibiotic ?
(A) Paracetamol (B) Aspirin
(C) Caffeine (D) Penicillin

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

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

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

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

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

7. Which is the correct statement ?
(A) Ethanol should boil at a temperature lower than that for ethane.
(B) Ethanol is less acidic than phenol
(C) Phenol is acidic than acetic acid
(D) Ethyne is a non-linear molecule.

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

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

10. Which is not a true statement ?
(A) Starch is a polysaccharide
(B) Sucrose is a carbohydrate
(C) Fructose and glucose don’t have the same molecular formula
(D) Glucose is a monosaccharide

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

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

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

14. Aromatic sulphonic acids are important compounds for producing :
(A) Soaps (B) Rubber
(C) Nylons (D) Detergents

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

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

17. Acetanilide is obtained by a reaction of aniline with :
(A) Acetone (B) Acetamide
(C) Methyl chloride (D) Acetyl chloride

18. Which of the following does not undergo Cannizzaro reaction ?
(A) Acetaldehyde (B) Formaldehyde
(C) Trichloroacetaldehyde (D) Benzaldehyde

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

20. Which one is an electrophile ?
(A) AlCl3 (B) C2H5NH2
(C) CN¯ (D) C2H5OH

21. The hybridized orbitals employed to explain the geometry of I3 – are :
(A) sp2 (B) sp3d2
(C) sp3 (D) sp3d

22. The planar geometry is exhibited by :
(A) ClO4
– (B) CO3 2-
(C) NI3 (D) PF5

23. The largest O–O bond length is expected in the species :
(A) O2 2+
(B) O2 +
(C) O2 –
(D) O2 2–

24. The values of n and m for the spectral lines to be observed in the visible region in the relationship
(A) n = 1; m = 2, 3, 4….. (B) n = 1; m = 3, 4, 5…..
(C) n = 2; m = 3, 4, 5….. (D) n = 2; m = 4, 5, 6…..

25. The weakest base amongst the halide ions is :
(A) F- (B) Cl-
(C) Br- (D) I-

26. Li+ ions would form the most thermally stable compound with the anion :
(A) CO3 2-
(B) N3 –
(C) ClO4 –
(D) NO3 –

27. The correct sequence representing first ionization energies (in ev) of IInd period elements is
represented by :
(A) C < B (B) Be < B
(C) O < N (D) N < C
28. The carbide ion [C3
4–], present in Mg2 C3 is isoelectronic with :
(A) C2N2 (B) CO2
(C) C2
2– (D) CN¯

29. An element whose hydride when reacted with water would produce H2 gas is :
(A) CsH (B) BeH2
(C) AlH3 (D) SiH4

30. The number of ione pairs on oxygen in the complex Et2O.B F3 :
(A) 0 (B) 1
(C) 2 (D) 3

31. Which element representing the following configuration will have the highest electron affinity ?
(A) [Ne] 3s2 3p3 (B) [Ne] 3s2 3p4
(C) [Ne] 3s2 3p5 (D) [Ne] 3s1

32. Which of the following electronic configurations will represent an orbital of highest energy ?
(A) n = 3; l = 2; m = +1 (B) n = 4; l = 0; m = 0
(C) n = 3; l = 1; m = +1 (D) n = 4; l = 1; m = +1

33. The number of nodal planes in the angular wave function of px and dxy orbitals respectively are :
(A) 0, 1 (B) 0, 2
(C) 1, 2 (D) 1, 1

34. When O2 is ionized to form O2
+, the electron removed from the M.O. is :
(A) σ b (B) π b
(C) π * (D) σ *

35. What is the oxidation number of S in HS¯ ?
(A) -2 (B)-1
(C) +1 (D) +2

36. Which of the following alkali metal hydroxides is the strongest base ?
(A) LiOH (B) NaOH
(C) KOH (D) CsOH

37. The arrangement representing the correct sequence of increasing ionic size is :
(A) N3
– < O2– < F– (B) F–< O2– < N3
–
(C) O2– < F– < N3
– (D) F–< N3
– < O2–

38. An aqueous solution of borax is :
(A) highly acidic (B) highly basic
(C) mildly acidic (D) mildly basic

39. The highest electronegativity is shown by :
(A) Carbon atom in its ground state configuration
(B) Carbon atom in sp3 hybridized state
(C) Carbon atom in sp2 hybridized state
(D) Carbon atom in sp hybridized state

40. Amongst the following, the complex ion with maximum number of unpaired electrons is : [At No. of
Mn = 25, Co = 27, Ni = 28, Cu = 29 :
(A) MnCl4 2-
(B) CoCl4 2-
(C) NiCl4 2-
(D) CuCl4 2-

Hi buddy I want to get Delhi University MSc Chemistry Entrance Exam Question Paper to do preparation of this exam so will you plz let me know from where I can do download it ??

[sumit]

As you want here I am giving bellow Delhi University MSc Chemistry Entrance Exam Question Paper on your demand :

1. The ground state term symbol for Eu3+ is
(a) 7 F0
(b) 7 F6
(c) 3F0
(d) 3F6
2. Which of the following compound would be drawn most strongly into a magnetic field?
(a) TiCl4
(b) VCl3
(c) FeCl2
(d) CuCl2
3. Which of the following correctly represents the balanced chemical reaction between aluminum and sulfur?
(a) 8 2 3 16Al 3S 8Al S   (b) 8 3 2 12Al S 4Al S  
(c) 8
8Al S 8AlS   (d) 8 2 4Al S 8AlS  
4. When two ionic compounds are dissolved in water, a double replacement reaction can
(a) Never occur since all ions in water are spectator ions
(b) Occur if two of the ions form an insoluble ionic compound, which precipitates out of solution
(c) Occur if the ions react to form a gas, which bubbles out of the solution
(d) Occur only if the ions form covalent bonds with each other.
5. Which Bronsted acid (H2O or H2
S(aq)) is the stronger acid and why is it the stronger acid?
(a) H2O is the stronger acid because oxygen has a greater electronegativity than sulfur, which gives the
attached hydrogen atom more proton character
(b) H2O is the stronger acid because H2
S is a gas and gases are not acids.
(c) H2
S is the stronger acid because the hydrogen-sulfur bond is much weaker than the hydrogen-oxygen
bond due to a greater difference in atomic orbital energy levels.
(d) H2
S is the stronger acid because it is a heavier molecule and therefore has more energetic collisions.
6. The common features among the species CN, CO, and NO are
(a) Bond order three and iso-electronic
(b) Bond order three and weak-field ligands
(c) Bond order two and stronger-field ligands
(d) Iso-electronic and weak-field ligands
7. The central atom in BrF5
has_?_ bonding pairs of electrons and _?_ non-bonding pairs of electrons
(a) 1 and 5 (b) 0 and 5 (c) 5 and 1 (d) 5 and 0

Delhi University MSc Chemistry Entrance Exam Question Paper