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  #2  
23rd September 2014, 12:46 PM
Super Moderator
 
Join Date: Apr 2013
Re: BHU PET M.Sc Chemistry Exam Paper

Here I am providing the list of few questions of M.Sc Chemistry Banaras Hindu University PET exam 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 more 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

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  #3  
22nd March 2015, 03:21 PM
Unregistered
Guest
 
Re: BHU PET M.Sc Chemistry Exam Paper

Hey, I want to appear in PET teat of the Banaras Hindu University will you provide me the sample paper of the PET M.Sc Chemistry Exam of BHU ?
  #4  
22nd March 2015, 03:36 PM
Super Moderator
 
Join Date: Apr 2013
Re: BHU PET M.Sc Chemistry Exam Paper

As you want I am here providing you sample paper of the Banaras Hindu University PET M.Sc Chemistry Exam.

Sample paper :

1. The change in entropy when two moles of a monatomic perfect gas is compressed to
half its volume and simultaneously heated to twice its initial temperature is
(1) Rln2 (2) 3Rln2 (3) 5Rln2 (4) 7Rln2

2. A heat engine operates between 1000 K and 600 K. The heat discharged into the cold
sink in a reversible process when 5 kJ of heat is supplied by the hot source, is
(i) 2 kJ (2) 2•5 kJ (3) 3 kJ (4) 5•5 kJ


3. For which of the following processes q = 0, w = 0, AU = 0 and AH = O?
(I) Reversible isothermal process in a perfect gas
(2) Reversible adiabatic process in a perfect gas
(3) Adiabatic expansion of a perfect gas into vacuum
(4) Reversible constant-volume process in a perfect gas


4. The fugacity or a certain gas at 200 K and 50 bars is 25 bars. The difference of its
chemical potential from that of a perfect gas in the same s~te is
(I) 200R In 25 (2) 200Rln2 (3) -200Rln2 (4) -200Rln25

7. The expression that relates the partial molar properties of the components in a mixture
is mown as
(1) van\ Hoff equation
(3) Du)lem-Margules equation
(2) Gibbs-Du)lem equation
(4) Raoult's law

9. Which of the following statements is not' correct?
(1) AGmix at constant temperature and pressure must be negative
(2' Intermolecular interactions are negligible in an ideal solution
(3) Solute-solute interactions are negligible in an ideally dilute solution
(4' Activity coefficients are never negative






Here is the attachment.
Attached Files
File Type: pdf BHU-PET-MSc-Chemistry-Exam-sample-Paper.pdf (599.9 KB, 112 views)


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