Discuss the factors which limit the accuracy of pH measurements.
See Answer →Briefly explain various types of capacities associated with ion exchangers.
See Answer →a) State the modification that was needed for Bohr’s atom model in view of Heisenberg’s uncertainty principle.
See Answer →Discuss the principle of coloumn chromatography illustrating the experimental setup.
See Answer →List different criteria for choosing the mobile phase used in paper chromatography.
See Answer →b) Explain one application each for the study of paramagnetic and diamagnetic substances using magnetic susceptibility measurements. Comment on their dependence of these values of temperature.
See Answer →Draw a flow chart for the classification of various types of chromatographic techniques.
See Answer →Explain continuous extraction with the help of a suitable diagram. Which factors govern the efficiency of such extractions?
See Answer →a) Draw the enantiomers for 2, 3-dibromopentane. Identify at least one pair of diastereomers among these structures. Can it form meso form? State the reason for your answer.
See Answer →Briefly explain the extraction by chelation. Also give some examples of the chelating agents used.
See Answer →Which reagents are used for extraction by solvation? Give suitable examples.
See Answer →Explain the following terms:
a) ModeratorExplain the following terms:
a) Moderator
b) Breeder reactor
c) Nuclear fusion
d) Transmutation reaction
e) Tracer technique
See Answer →
What is significance of t-test? Explain using a suitable example.
See Answer →Define Indeterminate errors. How we can reduce them
See Answer →b) i) Based on Subsec. 6.6.3, draw a rough sketch of curves for
and
ii) Which of the two and
has a nonzero value for orientation polarization? State the reason.
Writ the procedure for the collection and preservation of water samples.
See Answer →a) For the lowest wave number absorption line in its rotational spectrum occurs at 41.11
Calculate the wave numbers corresponding to its second, third and fourth absorption lines. Explain the term, rotational spacing using these values.
See Answer →b) What is the essential condition for a molecule to be microwave active? Classify the following molecules as microwave active or microwave inactive and state the reason in each case.
[Hint: is a linear molecule and one of the nitrogen atoms is at the centre.]
a) You are provided with pure copper sulphate crystal. Using Beer-Lambert law, how can you determine the concentration of a test solution of copper sulphate? Explain in a detailed way
See Answer →Calculate the number of normal modes of vibration o and
Draw diagrams to
illustrate the symmetric stretching, asymmetric stretching and bending vibrations of