Solved RGPV Papers

Hello sir, is there any one can provide me some solved papers form RGPV? Is you have any course of question paper from RGPV then please provide me?

[Rajkumar Agarwal]

As you want here I’m giving you RGPV question paper for Chemistry in B.E 1st year: you need to practice with this paper.

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RGPV question paper for Chemistry in B.E 1st year





Unit - I
1. a. Why does magnesium bicarbonate require double amount of lime for softening?
b. If silica is present in water, what harmful effects it can cause?
c. Explain the function of calgon and sodium aluminate in water treatment.
d. Discuss zeolite method of water softening with its limitation.

OR


A sample of water has been found to contain the following in ppm: Ca(HCO3)2=10.5, Mg(HCO3)2=12.5, CaSO4=7.5, CaCl2=8.2, MgSO4=2.6. Calculate the temporary and permanent hardness in degree French. Calculate lime and soda for 1000 liters of water.

Unit - II
2. a. Differentiate coal from coke.
b. Give significance of ultimate analysis of coal.
c. What are octane number and cetane number?
d. The percentage composition by weight of a coal sample was found to be as under: C=81%, H=5%, O=8.5%, S=1%, N=1% and 3.5% ash.
i. Calculate the minimum amount of O2 and air required for complete combustion of 1kg of this coal.
ii. Percentage composition by weight of the dry products of combustion.
OR

What is cracking? Discuss moving bed catalytic cracking with its advantages.

Unit - III
3. a. Give two examples of each, lubricating oils, greases and solid lubricants.
b. Why anti-oxidants are added to lubricants? Give examples of it also.
c. What are the constitutional compounds of Portland cement?
d. Discuss important properties of refractories.