By the addition of base in water pH will be_______________?
A. more than 7
B. less than 7
C. equal to 7
D. no effect
Submitted by :- Jamil Ahmed
Catalyst used to speed up the reaction of ammonia synthesis is________________________?
A. V2O5
B. V2O5 and Pt
C. Fe
D. Pieces of Fe crystals are embedded in fused mixture of MgO Al2O3 and SiO2
Submitted by :- Jamil Ahmed
Unit of Kc is_______________?
A. moles2dm+6
B. moles-2dm+6
C. moles+2dm-6
D. Kc may or may not have units
Submitted by :- Jamil Ahmed
Conversion of reactant into product in unit time is called________________?
A. rate of forward reaction
B. rate of backward reaction
C. rate constant
D. rate co-efficient
Submitted by :- Jamil Ahmed
Reaction which proceeds in both directions is called_______________?
A. reversible
B. irreversible
C. spontaneous
D. non-spontaneous
Submitted by :- Jamil Ahmed
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