Explain the terms limiting current, migration current, diffusion current, residual current and half wave potential.
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Enlist various voltammetric methods of analysis. Write briefly about anodic stripping voltammetry(ASV) and its usefulness for trace elemental analysis.
See Answer →Describe the design and principle of constant current coulometry. Write three main applications of coulometric titrations.
See Answer →The conductivity of 0.001028 M acetic acid is 4.95 × 105 S cm²¹. Calculate its dissociation constant if the limited molar conductivity for acetic acid is 390.5Scm² mol¹.
See Answer →Explain how will you determine dissociation constant of a weak acid or base by conductometric method.
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A solution of CuSO4 is electrolysed for 10 minutes with a current of 1.5 amperes. What is the mass of copper deposited at the cathode?
See Answer →How will you analyse a binary alloy of copper and silver thermogravimetrically.
See Answer →Define conductivity, cell constant and molar conductivity. Resistance of a conductivity cell filled with 0.1M KCl solution is 100 Ω. If the resistance of the same cell when filled with 0.02 M KCl solution is 520 Ω, calculate the conductivity and molar conductivity of 0.02 M KCl solution. The conductivity of 0.1 M KCl solution is 1.29 Sm¹.
See Answer →What is solid state membrane electrode? Draw a sketch and describe their applications.
See Answer →Describe various factors that cause errors in pH measurement.
See Answer →What do you understand by cell potential? Calculate the potential of following electrodes:
i) A copper electrode immersed in 0.022 M Cu (NO3)2
ii) A zinc electrode immersed in 0.030 M Zn (NO3)2
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What is the legal liability for laboratory accidents in educational intuitions?.
See Answer →What is the role of laboratory staff in case of any emergency in the laboratory.
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Enlist the causes of most common dangers that may occur in a biology laboratory work.
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List the requirements fulfilled by labels and packaging in handling of chemicals.
See Answer →What is meant by earth leakage and the earth leakage circuit breakers?
See Answer →Describe the procedure for fire fighting.
See Answer →Explain the GIGO principle and data processing in the use of computers in laboratory management.
See Answer →Describe the input and output devices of a computer.
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