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Comment on the statement that colloid is not a substance but a state of substance
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0
|
6461
|
November 1, 2016
|
|
What do you understand by activation of adsorbent? How is it achieved?
|
|
0
|
5236
|
November 1, 2016
|
|
What are the factors which influence the adsorption of the gas on a solid?
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|
0
|
839
|
November 1, 2016
|
|
Do the vital functions of the body such as digestion get affected during fever?
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|
1
|
5366
|
November 1, 2016
|
|
Why is desorption important for a substance to act as good catalyst?
|
|
0
|
2405
|
November 1, 2016
|
|
What is the role of diffusion in heterogeneous catalysis?
|
|
0
|
2730
|
November 1, 2016
|
|
Why are substances like platinum and palladium often used for carrying out electrolysis of aqueous solutions?
|
|
0
|
6130
|
November 1, 2016
|
|
How does a solid catalyst enhance the rate of combination of gaseous molecules?
|
|
0
|
2244
|
November 1, 2016
|
|
Why do physisorption and chemisorption behave differently with rise in temperature?
|
|
0
|
3723
|
November 1, 2016
|
|
The time required for 10% completion of a first order reaction
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|
1
|
8386
|
November 1, 2016
|
|
The rate constant for the decomposition of $N_{2}$$O_{5}$ at various temperatures is given below
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|
1
|
1262
|
November 1, 2016
|
|
A first order reaction has a rate constant
|
|
1
|
2732
|
November 1, 2016
|
|
The half-life period of a radioactive element is 140 days
|
|
1
|
5771
|
November 1, 2016
|
|
Sucrose decomposes in acid solution
|
|
1
|
1571
|
November 1, 2016
|
|
A first order reaction takes 100 min
|
|
1
|
8599
|
November 1, 2016
|
|
How much time will it take to reduce the initial concentration of the reactant to its l/16th value?
|
|
1
|
1392
|
November 1, 2016
|
|
A first order reaction takes 40 min for 30% decomposition
|
|
1
|
1453
|
November 1, 2016
|
|
What are the rates of production of ${ N }_{ 2 }$ and ${ H }_{ 2 }$?
|
|
1
|
466
|
November 1, 2016
|
|
Predict the order of the reaction in this case
|
|
1
|
2257
|
November 1, 2016
|
|
What is the order with respect to NO and with respect to reaction chlorine?
|
|
1
|
808
|
November 1, 2016
|
|
Calculate the rate constant
|
|
1
|
1718
|
November 1, 2016
|
|
A reaction is of second order in A and first order in B
|
|
1
|
2310
|
November 1, 2016
|
|
What is the order of the reaction with respect to A and B
|
|
1
|
1018
|
November 1, 2016
|
|
Fill in the blanks in the following table
|
|
1
|
957
|
November 1, 2016
|
|
The conversion of molecules x to y follows second order kinetics
|
|
1
|
1929
|
November 1, 2016
|
|
How is the rate of reaction affected
|
|
1
|
560
|
November 1, 2016
|
|
Why can we not determine the order of a reaction
|
|
1
|
3289
|
November 1, 2016
|
|
Calculate the equilibrium concentration of the reactants
|
|
1
|
4163
|
November 1, 2016
|
|
Calculate the rate of reaction after [A] is reduced to 0.06
|
|
1
|
850
|
October 31, 2016
|
|
Explain how rusting of iron is envisaged as setting up of an electrochemical cell?
|
|
0
|
2484
|
October 31, 2016
|