Describe standard addition method of analysis for flame photometric measurements
See Answer →List the factors that determine the signal intensity in flame photometry.
See Answer →Sampling is an important consideration in IR spectrometry. Describe the methods used for sampling for IR measurement in solid state.
See Answer →Enlist different types of species that absorb in the UV-VIS region and explain the types of transitions observed in organic compounds.
See Answer →The Gyan Vani transmission of IGNOU is broadcast at a frequency of 105.6 MHz in the Delhi region. Compute the energy of a photon corresponding to this frequency
See Answer →Define electromagnetic radiation and state the relationship between the velocity and wavelength of an electromagnetic radiation.
See Answer →A mixture of CaCO3 and CaO is analysed using TGA technique. TG curve of the sample indicates that there is a mass change from 584.2 mg to 374.5 mg between 500-900°C. Calculate the percentage of CaCO3 in the sample.
See Answer →List the factors affecting TG curve. Taking a suitable example, explain the effect of furnace atmosphere on TG curve.
See Answer →The conductivity of 0.3 M HCl is 0.2384 Ω-1 cm-1. What is the molar conductivity of the solution?
See Answer →Distinguish between molar conductivity and limiting molar conductivity. Explain why limiting ionic mobilities of H+ and OH- ions are exceptionally high.
See Answer →Discuss design and working of a calomel electrode.
See Answer →Calculate the potential of following electrodes:
i) A copper electrode immersed in 0.04 M Cu(NO3)2
ii) A zinc electrode immersed in 0.05 M Zn(NO3)2.
See Answer →What is direct potentiometry? Write Nernst equation for the following cell: Zn(s) | Zn2+(a1) ║ Cu2+(a2) | Cu(s)
See Answer →Give any two examples of stationary phases which can be used in column chromatography?
See Answer →What is reverse phase chromatography?
See Answer →What is chabazite?
See Answer →What is bathc extraction.
See Answer →(a) Explain the extraction of Pb2+ ions using dithizone giving the structure of the complex form.
See Answer →Define different types of capacities used in ion exchange chromatography?
See Answer →How can you separate the components of a mixture using column chromatography? Explain using suitable diagram.
See Answer →