Chemistry-
General
Easy
Question
A certain buffer solution contains equal concentration of 
and 
The 
for 
is 10. The pH of the buffer is:
- 7
- 8
- 11
- 14
The correct answer is: 8
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Chemistry-
A student wants to prepare a saturated solution of 
ion. He has got three samples 
and 
Which of the above compound will be used by him using minimum weight to prepare the saturated solution?
A student wants to prepare a saturated solution of ion. He has got three samples and Which of the above compound will be used by him using minimum weight to prepare the saturated solution?
Chemistry-General
General
A charge q is placed at the centre of the open end of cylindrical vessel. The flux of the electric field through the surface of the vessel is
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For a reaction 
kcal. If energy of activation for this reaction is 70 kcal, the energy of activation for backward reaction is :
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Chemistry-General
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What is the solubility product of 
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of 
per 
?
What is the solubility product of if its saturated solution contains of per ?
Chemistry-General
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The equilibrium constant of a reaction is 20.0. At equilibrium, the rate constant of forward reaction is 10.0. The rate constant for backward reaction is :
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Chemistry-General
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On a given condition, the equilibrium concentration of 
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Chemistry-General
Chemistry-
The 
of boiling water 
is…, (
at 
).
The of boiling water is…, ( at ).
Chemistry-General
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2.5 mL of 
M weak monoacidic base (
) is titrated with 
M 
in water at 
. The concentration of 
at equivalence point is (
)
2.5 mL of M weak monoacidic base () is titrated with M in water at . The concentration of at equivalence point is ()
Chemistry-General
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What happens to the yield on application of high pressure in the Haber’s synthesis of ammonia?
What happens to the yield on application of high pressure in the Haber’s synthesis of ammonia?
Chemistry-General
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The reverse process of neutralization is:
The reverse process of neutralization is:
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Which oxide is/are neutral?
Which oxide is/are neutral?
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Which is a Lewis base 
Which is a Lewis base
Chemistry-General
Physics-
In the figure magnetic energy stored in the coil is
In the figure magnetic energy stored in the coil is
Physics-General
Physics-General
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If a coil of metal wire is kept stationary in a non-uniform magnetic field, then
If a coil of metal wire is kept stationary in a non-uniform magnetic field, then
Physics-General
Physics-
Which of the following is constructed on the principle of electromagnetic induction
Which of the following is constructed on the principle of electromagnetic induction
Physics-General
