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Chemical Equilibrium - 1
1.
Rate of reaction is _____________ to the product of active masses of reactants.
a) Directly proportional
b) Henderson’s eqn.
c) Very weak acid
d) Pressure or valume
2.
Rate constant for forward step = __________ Rate constant for back ward step
a) Kc
b) Henderson’s eqn.
c) High
d) Catalyst.
3.
If [Product] is less than Kc, the reaction will proceed in _____ direction.
[Reactants]
a) Very small
b) Forwards
c) High
d) Very weak acid
4.
If the value of Kc is ___________ it indicate that the reaction does not take place to an appreciable extent.
a) Henderson’s eqn.
b) Strong acid.
c) Very weak acid
d) Very small
5.
Addition of a reactant or removal of a product from a reaction mixture at equilibrium shifts the reaction in___________ direction.
a) Forward
b) Pressure or valume
c) High
d) Catalyst.
6.
Change in ________ is important only for a reversible reaction where no. of moles of reactant and products are not equal.
a) Henderson’s eqn.
b) High
c) Buffer
d) Pressure or valume
7.
__________ does not effect the equilibrium, but reduces the time to attain it.
a) Buffer
b) Molarities
c) Ksp (Sobibility product)
d) Catalyst
8.
At very high pressure and low temperature the yield of NH
3
is _____________
a) Very weak acid
b) Strong acid.
c) High
d) Pressure or valume
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