Reaction which proceeds in both directions is called_______________?
A. reversible
B. irreversible
C. spontaneous
D. non-spontaneous
Submitted by :- Jamil Ahmed
CHEMISTRY
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Which of following is not a base______________?
A. KOH
B. NH3
C. PH3
D. BF3
Submitted by :- Jamil Ahmed
In which of the following equilibria will Kc and Kp have the same value ?
A. PCI5 = PCI3 + Cl2
B. N2 + 3H2 = 2NH
C. 2CO + O2 = CO2
D. N2 + O2 = 2NO
Submitted by :- Jamil Ahmed
Sodium benzoate and benzoic acid are mixed in equimolar ration to form buffer if pKa is 2 what will be the pH ?
A. 0
B. 1
C. 2
D. any one
Submitted by :- Jamil Ahmed
Kc value has_______________?
A. No units
B. Units
C. Both A & B
D. None
Submitted by :- Jamil Ahmed
Conjugated base of a weak acid is_________________?
A. weak
B. strong
C. moderately weak
D. unstable
Submitted by :- Jamil Ahmed
Solution having the property of a very little change in pH on adding a small amount of strong acid or base is called________________?
A. buffer solution
B. normal solution
C. standard solution
D. neutral solution
Submitted by :- Jamil Ahmed
Which one of the following is a buffer solution ?
A. brine
B. blood
C. glue
D. solution of CuSO4
Submitted by :- Jamil Ahmed
Equilibrium state is achieved quickly by the addition of ________________?
A. reactants
B. acid
C. base
D. catalyst
Submitted by :- Jamil Ahmed
By decreasing the pressure the reaction will go to that direction where_________________?
A. volume is decreased
B. volume increased
C. heat absorbed
D. no. of moles of specie decreased
Submitted by :- Jamil Ahmed