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Chemistry 11 Chapter 8
Chemical Equilibrium
Test 7A
1.
Reaction which proceds in both directions is called?
a) Reversible
b) Irreversible
c) Spontaneous
d) Non-spontaneous
2.
Chemical equilibrium state is?
a) Dynamic state
b) Static state
c) Free state
d) Uni directional state
3.
Conversion of reactants in to product in unit time is called?
a) Rate of forward reaction
b) Rate of back ward reaction
c) Rate constant
d) Rate coefficient
4.
Unit of Kc is?
a) Moles
2
dm
5
b) Moles
-2
dm
-5
c) Moles
2
dm
-5
d) Kc may or may not have larger unit
5.
In case of gases Kc is replaced by?
a) Ka
b) Kb
c) Kp
d) K
6.
Kn=n
Product
/n
Product
gives?
a) Mole fraction
b) Partial fraction
c) Partial temprature
d) Equilibrium stage
7.
When the value of Kc is very large then reaction will be?
a) Forward
b) Backward
c) Equilibrium
d) Reaction complete
8.
Catalyst used to speed up the reaction of ammonia synthesis is?
a) V
2
O
5
b) V
2
O
5
and Pt
c) Fe
d) Piece of Fe in fused mixed of MgO,Al
2
O
3
and SiO
2
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