SRM University 2007 B.Tech MODEL - Question Paper

(a) Kc = Kb / Kf
(b) Kc = Kf / Kb
(c) Kc = Kf Kb
(d) Kc = Kf – Kb
32. The effect of pressure, concentration, temperature on equilibrium reactants can be
predicted by
(a) legal regulations of mass action
(b) Le chaterlier – Braun principle
(c) Ostwald’s legal regulations
(d) D alton’s legal regulations
33. Catalyst used in the Haber’s process for the manufacture of ammonia are
(a) Iron
(b) Platinum and molybdenum
(c) Iron and vanadium pent oxide
(d) Platinum and Iron
34. Along the identical period, the ionic radii of the element,
(a) reduces
(b) Increases
(c) Neither increases nor reduces
(d) Increases then reduces
35. Which element would form an ion whose radius is larger than that of its atom?
(a) Lithium
(b) Sodium
(c) Chlorine
(d) Potassium
36. The gradual reduce in the size of the lanthanides with increase in atomic number is
due to
(a) less screening effect of 4f electron
(b) greater screening effect of 4f electron
(c) greater screening effect of 5d electron
(d) greater screening effect of 6s electron
37. Isotopes of uranium are used in
(a) Photography
(b) Medicine
(c) Nuclear fission
(d) Volumetric analysis
38. The metal used in galvanization of iron is
(a) Sodium
(b) Calcium
(c) Zinc
(d) Tin
39. Mercury vapour lamp provide
(a) White light
(b) Blue light
(c) Yellow light
(d) Red light
40. The primary valency of iron in K3 [Fe(CN) 6] is
(a) 0
(b) 3
(c) 2
(d) 1
41. Which of the subsequent is most likely to undergo nucleophilic substitution reaction by
SN1 mechanism?
(a) CH3Br
(b) (CH3) 3CBr
(c) CH3CH2Br
(d) CH3CH2CH2Br
42. Elimination reaction are inverse of
(a) Substitution
(b) Addition
(c) Reduction

Earning:   Approval pending.