Give the difference between thermometric and classical titrimetry.
See Answer →Write down any five applications of DSC technique.
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A mixture of CaCO3 and CaO is analysed using TGA method. TG curve of the sample indicates that there is a mass change from 290.6 mg to 230.8 mg between 500-900.C. Calculate the percentage of CaCO3 in sample.
See Answer →Discuss various sources of errors in TGA.
See Answer →How will you determine lead and copper in carbon steels using polarographic method?
See Answer →What are the factors affecting the diffusion current? Discuss these factors in brief.
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What is stripping voltammetry? Taking a suitable example discuss the anodic stripping voltammetry.
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To analyse a brass alloy, a 0.442 g sample is dissolved in acid to volume in a 500 cm3 volumetric flask. Electrolysis of a 10 cm3 sample at -0.3 V vs SCE reduces Cu2+ to Cu, requiring total charge of 16.11 C. Adjusting the potential of 0.6 V vs SCE and completing the electrolysis requires 0.442 C to reduce Ph2+ to Pb. Report the percentage of Cu and Pb in the alloy.
See Answer →What are molar conductivity and limited molar conductivity? Calculate the dissociation constant of 0.02 mol dm-3 ethanoic acid, if its molar conductivity is 11.57 10-4 S m2 mol-1 and limited molar conductivity is 3.90 x 10-2 S m2 mol-1 .
See Answer →Write five main features of coulometric methods.
See Answer →What is the cell potential of an electrochemical cell made of a cadmium electrode in a 0.1 M Cd(NO3)2 solution and chromium electrode in a 1 x 10 M Cr(NO3)3 solution.
[Given: ]
What is meant by Ion Selective electrodes? Give their applications.
See Answer →What are the characteristics of a reference electrode? Describe the construction and working of a Calomel electrode.
See Answer →Derive the Nernst expression for galvanic cell.
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Draw a curve of binding energy per nucleon as a function of mass number. With the help of this curve, explain the process of fission and fusion.
See Answer →Calculate the mass defect and binding energy per nucleon for a lithium
nucleus 
Mass of lithium nucleus (M) = 7.000000 u
Mass of proton (mp) = 1.007825 u
Mass of neutron (mn) = 1.008665 u
1 u = 931 MeV
See Answer →Classify the following particles as Baryons, Mesons and Leptons:
µ, νe, Σ+, Λ, p, K+, n0, π+
See Answer →State giving reasons, which of the following reactions are possible?
i)
ii)
iii)
The half-life of radon is 3.82 days. How long will it take for 60 percent of a sample of radon to decay?
An X-ray tube operates at 40 kV. Calculate the minimum wavelength of the emitted rays.
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