Solve your IGNOU Doubts
Solve your IGNOU Doubts
Question:

What is electromigration? What are the techniques included in it? 

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Question:

Azeotropic distillation

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Question:

Steam distillation 

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Question:

Vacuum distillation

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Question:

Flash distillation 

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Question:

Fractional distillation 

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Question:

 Mention the activities involved with the management of solid waste from the point of origin to final disposal

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Question:

 Mention the activities involved with the management of solid waste from the point of origin to final disposal

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Question:

Briefly discuss the principle of the working of a colorimeter. How the modern spectrophotometers are different from these? 

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Question:

What do you understand by hazardous waste? What are the characteristics of hazardous wastes? 

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Question:

What is meant by inductively coupled plasma? 

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Question:

How to circumvent the problem of the cases where precipitates tend to oxidize during washing? What are the protocols to be followed during washing of precipitate in general?

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Question:

With suitable schematic precipitation titration curve explain how the iodide-chloride mixture is titrated with silver ion.

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Question:

With suitable chemical equations show how potassium permanganate can be used for the analysis of iron(II) and As(III). What is the advantage of using potassium dichromate over permanganate in estimating iron(II)? 

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Question:

Discuss the characteristics of any two common nonaqueous solvents.

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Question:

What are Hammet’s acidity functions? Give its equation and mention what is special about it. 

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Question:

Define an indicator and discuss the criteria for the selection of an acid-base indicator with the help of an example.  

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Question:

Discuss the properties of buffer solutions especially when acids and bases are added. Also discuss what happens to it when it is diluted.  

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Question:

Compute the pH of the solution during the course of titration of 100 cm3 of 0.1 M HCl with a solution of NaOH having equal concentration and draw the titration curve.  

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Question:

 Describe how to set up internet connection 

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