Chemistry (M.Phil./Ph.D.) 2017 Panjab University Entrance Exam With Answers

Get Ready for Chemistry (M.Phil./Ph.D.) Panjab University Entrance with MCQs & Answers. Maximize success with Jetty Study's extensive resources.

1. Among the following ions which one has the highest paramagnetism?

2. In [NiF6]4-, [FeF6]3- , [TiF6]2- and [CrF2]

3. Which of the following complex ions shows minimum intensity of absorption in UV- Visible region?

4. The ESR spectrum of naphthalene radical anion consists of:

5. The g value for the benzene radical anion is 2.0025. At what field would you search for resonance in a spectrometer operation at 9.302 GHz?

6. Melting point of NaCl, NaBr, NaI and NaF will be in order:

7. Which is maximum hydrated?

8. Of the following mixtures of two pure acids the strongest acid will be:

9. CO2 cannot be obtained by heating:

10. Solution of Na metal in liquid NH3, is a strong reductant due to the presence of:

11. B H B bridge in B2H6 is formed by sharing of:

12. PI3 upon hydrolysis gives:

13. Which one of the following is sp3d hybridised:

14. The square pyramidal molecular shape is adopted by:

15. From molecular orbital configuration of CO and NO+, we would predict:

16. Indicate the organometallic complex that obeys the EAN rule:

17. The trivalent ion having largest size is:

18. The absolute configuration of two chiral centers (C-1, C-6) present in compound given below is:

19. The relation between compound X and Y is:

20. Singlet and triplet carbene can be identified by reaction with:

21. The relationship between two compounds given below are:

22. Which of the following compound is aromatic in nature?

23. Alkyl halide with halogen at bridge head are inert to nucleophilic substitution through SN1 mechanism is due to

24. Which rule prevent the formation of double bond at bridge head?

25. The major product formed in the following reaction sequence is:

26. The selective reduction of α,β-unsaturated ketones to α,β-unsaturated alcohols can be achieved by:

27. The most suitable reagent for carry out the transformation given below:

28. The most suitable reagent for carry out the transformation given below:

29. Cope rearrangement is an example of:

30. The following reaction is an example of:

31. tert.-Butoxycarbonyl group i.e (CH3)3COCO-) protected amine can be deprotected by:

32. Aldehydes can be protected as acetals by reaction of aldehydes with excess of alcohol in presence of:

33. Predict the structure of compound with molecular formula C8H16. H NMR of this compound exhibit only one signal at δ (1.29, 16H). The compound is:

34. In the mass spectrum of 1, 2-dibromoethane, approximate ratio of peaks at m/z values 186(M+), 188(M++2), 190 (M++4) will be:

35. X-rays with wavelength 1.54 Å are reflected from the (1 1 0) planes of a cubic crystal with unit cell a = 6 Å. The Bragg angel, θ, for first order of reflection i.e. n = 1 would be

36. A first order reaction is found to have a rate constant, k = 5.5 x 10-14 sec-1. The half-life of the reaction is:

37. Variation of chemical potential with pressure results

38. The heat of reaction 1⁄2 H2 + 1⁄2 Cl2 ------>HCI at 27 C is – 22.1 kcal. Calculate the heat of reaction at 770C. The molar heat capacities at constant pressure at 270C for hydrogen, chlorine and HCl are 6.82, 7.70 and 6.80 cal mol-1 respectively.

39. Activity coefficients calculated using Debye-Huckel law are always

40. If the wave function of a particle trapped in space between x = 0 and x = L is given by Ψ(x) = Asin(2Πx/L), where A is a constant. For which value(s) of x will the probability of the finding of particle be maximum

41. The protecting power of lyophilic colloidal sol is expressed in terms of

42. Which of the following methods gives the number average molecular weight of a polymer?

43. SiF4, BF4- belongs to which point group?

44. The function of alum used for purification of water is to

45. If we operate a Carnot’s engine between the freezing point and boiling point of water, what will be the efficiency of that engine?

46. If the molar conductance at infinite dilution of NaCl, HCl and CH3COONa are 126.4, 425.9 and 91.0 S cm2 mol-1 respectively. The molar conductance at infinite dilution for Acetic acid is:

47. The Tafel equation is an equation in electrochemical kinetics relating

48. The pure rotational spectrum of CO consists of a series of equally spaced lines separated by 3.84235 cm-1. The atomic masses are: 12C = 19.92168 x 10-27 kg and 16O = 26.56136 x 10-27 kg. The internuclear distance of the molecule

49. What is the equilibrium constant for the reaction given below at 298 K, if Ecell = 1.10 V at 298 K? Zn2+ (aq) + Cu (s)Zn(s) + Cu2+ (aq)

50. In a solid “AB’ having the NaCl structure, “A” atoms occupy the corners of the cubic unit cell. If all the face centered atoms along one of the axes are removed, then the resultant stoichiometry of the solid is: