Which one of the following aqueous solutions will be basic ?
A. NaCI
B. Na2SO4
C. Na2CO3
D. FeCl3
Submitted by :- Jamil Ahmed
For a reaction involving only gases at 25?C the equilibrium constant can be expressed in terms of molarity Ke or partial pressure Kp. Which is true about the numerical value of Kp ?
A. Kc is generally greaer than Kp
B. Kc is generally less than Kp
C. Kc is generally equal to Kp
D. Kc is equal to Kp if the total moles of reactants and products are equal
Submitted by :- Jamil Ahmed
Which of the following will not change the concentration of ammonia at the equilibrium ?
A. Increase of pressure
B. Increase of volume
C. Addition of catalyst
D. Decrease of temperature
Submitted by :- Jamil Ahmed
If a buffer solution of higher pH than seven is to be made we use__________?
A. Strong acid and strong base
B. Weak acid and strong base
C. Weak acid and strong base
D. Weak acid and its salt with strong base
Submitted by :- Jamil Ahmed
The gases become non-ideal at ________________?
A. High temperature and high pressure
B. Low temperature and low pressure
C. High temperature and low pressure
D. Low temperature and high pressure
Submitted by :- Jamil Ahmed
Who made volume and pressure correction to explain deviation of gases from ideal behavior ?
A. Clausius
B. Boltzman
C. Charles
D. Vander waal
Submitted by :- Jamil Ahmed
What do we call to sudden expansion of plasma ?
A. Avogadro’s law
B. Grahams law of diffusion
C. Joule Thompson effect
D. Daltons law of partial pressure
Submitted by :- Jamil Ahmed
Addition of CH3COOH and CH3COONa gives in water_______________?
A. Standard solution
B. buffer solution
C. acidic buffer solution
D. both B & C
Submitted by :- Jamil Ahmed
Any substance which accepts H+ is base favours the concept___________________?
A. Lowrys
B. Lewis
C. Arrhenius
D. None of these
Submitted by :- Jamil Ahmed
Negative log of molar concentration of H+ ions is called___________________?
A. pH
B. pOH
C. pKa
D. pKw
Submitted by :- Jamil Ahmed