Indian Institute of Information Technology 2006 Entrance Exams IIT Entrance Exams JAM BIOTECHNOLOGY TEST - Question Paper
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(B) d-d transition in Fe(III) ions only
(C) the electron transfer from 1 oxidation state of iron ion to the other
(D) evolution of solvated electron in aqueous medium
54. The stretching frequency for free CO molecule is ~2143 cm-1. In Fe(CO)5 molecule the stretching frequency for CO becomes
(A) ~2240 cm-1
(B) ~2030 cm-1
(C) remain unchanged
(D) cannot be predicted
55. The degree of hydration for the compounds NaCl, KCl, MgCl2 and BaCl2 follows the order
(A) MgCl2>BaCl2
56. Yellow CrO42- is easily converted to orange Cr2O72- by any acid. This transformation is
(A) dimerisation reaction
(B) disproportionation reaction
(C) oxidation reaction
(D) reduction reaction
57. Upon mixing and aqueous solution of blue CuSo4 solution with excess KCN, which on of the subsequent complex compound is produced?
(A) K4[Cu(CN)4] (B) K3[Cu(CN)4] (C) K4[Cu(CN)6]
(D) [Cu(CN)2(OH)2]
58. Consider the cyclic process ABCA on a sample of 2.0 mol of an ideal gas as shown in
figure.
C P
A B
V
The temperatures of the gas at A and B are 300 K and 500 K, respectively. A total of
1200 J heat is withdrawn from the sample in the process. obtain the work done by the gas in part BC (R = 8.3 J/mol-K)
(A) 4520 J (B) 0
(C) -4520 J
(D) -9000 J
59. If heat is supplied to an ideal gas in an isothermal process
(A) the gas will do positive work
(B) the internal energy of the gas will increase
(C) the gas will do negative work
(D) the stated process is not possible
60. The flow of solvent molecules from pure solvent side to the solution side takes place during osmosis. This causes a reduce in the difference of chemical potential of solvent on either side
(A) hydrostatic pressure increases on either sides
(B) false
(C) chemical potential has no role to play
(D) true
| Earning: Approval pending. |
