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.Management Sciences
Category: Chemical Equilibrium
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
Which set of solutes will form a buffer when dissolved in water to make 1 litter of solution ?
A. 0.0002M HCI
B. 0.2 mole of NaCI with 0.2 mole of HNO3
C. 0.4 mole of CH3COOH with 0.4 mole of NaOH
D. 0.4 mole of NH3 with 0.2 mole of HCI
AgCl dissolved with conc (2×10-2) Ksp will be__________________?
A. 3.6 x 10-6
B. 3.6 x 10-5
C. 7.2 x 10-6
D. 4 x 10-4
Unit of Kc is_______________?
A. moles2dm+6
B. moles-2dm+6
C. moles+2dm-6
D. Kc may or may not have units
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
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
When sparingly soluble salt is in equilibrium with molar concentration of its oppositely charged ion when the product is called_________________?
A. common ion effect
B. solubility product
C. dissociation constant
D. dissociation constant for an acid
Addition of CH3COOH and CH3COONa gives in water_______________?
A. Standard solution
B. buffer solution
C. acidic buffer solution
D. both B & C
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
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