D:-(a)-(v); (b)-(vi); (c)-(ii) and (d)-(iv)

Correct Answer:- Option-A
Question84:-The light pink color of [Co(*H_(2)*O)’_6* ] *(2+)° and the deep blue color of [000 (4) ] १2- 86 0७९ ०

A:-MLCT transition in the first and d-d transition in the second

B:-LMCT transition in both

C:-d-d transitions in both

D:-d-d transition in the first and MLCT transition in the second

Correct Answer:- Option-C
Question85:-Patients suffering from Wilson's disease have

A:-Low level of Cu-Zn superoxide dismutase

B:-High level of Cu-Zn superoxide dismutase

C:-Low level of copper-storage protein, ceruloplasmin

D:-High level of copper-storage protein, ceruloplasmin

Correct Answer:- Option-C
Question86:-The carbon-14 activity of an old wood sample is found to be 14.2 disintegrations ‘min*(-1)g*(-1)°. Calculate
age of oldwood sample, if for a fresh wood sample carbon-14 activity is 15.3 disintegrations ‘min*(-1)g*(-1)(t_(1/2)*
carbon-14 is 5730 years), is

A:-5,000 years

B:-4,000 years

C:-877 years

D:-617 years

Correct Answer:- Option-D
Question87:-In a polarographic estimation, the limiting currents (uA) were 0.15, 4.65, 9.15 and 27.15 when concentration
(mM) of Pb(II) were 0, 0.5, 1.0 and 3.0 respectively. An unknown solution of 810/11) gives a limiting current of 13.65 ൧.
Concentration of 001) in the unknown is

A:-1.625 mM

B:-1.208 mM

C:-1.768 mM

D:-1.500 mM

Correct Answer:- Option-D
Question88:-The number of valence electrons provided [Ru*(CO)_(3)* ] fragment towards cluster bonding is

ا

B:-12

C:-8

D:-2

Correct Answer:- Option-D
Question89:-0.106 mg of stearic acid (M = 284 g ‘mol*-1°) is found to cover 500 ‘cm*(2)° of water surface at the point
where surface pressure just begins to rise sharply. Estimate the cross sectional area a, per stearic acid molecule and
thickness t, of the surface film of stearic acid on water. Density of stearic acid = 0.85 g°cm*(-3).°

A:3.5 nm

B:-2.5 nm

C:-1.9 nm

D:-.05 cm

Correct Answer:- Option-B
Question90:-For Daniel cell calculate AG, if E = 1.10v at 250 C and D = 2, F = 96500 C

൧:-185.4 19)

B:-200.2 KJ

C:-212.3 KJ

D:-256.2 KJ

Correct Answer:- Option-C
Question91:-Which of the following expression does not figure in the Preamble of Indian Constitution ?

A:-Republic

B:-Socialist

C:-Federal

D:-Secular

Correct Answer:- Option-C
Question92:-Which was described by Dr. B.R. Ambedkar as the 'Heart and Soul of the Constitution’ ?

A:-Right to Equality

B:-Right to Constitutional Remedies

C:-Right to Freedom