Chemistry Basic Concept

A. 4.0 x 10-8
B. 3.2 x 10-11
C. 2.0 x 10-8
D. 4.0 x 10-12

A. Kc is constant at given temperature
B. Kc is unaffected by change in concentration of reactants or products
C. Kc indicates the extent of reaction but not about the rate of reaction.
D. All of the above

A. CCI4
B. CO2
C. BF3
D. none of the above

A. B
B. C
C. N
D. O

A. Fe2O3
B. V2O5
C. SO3
D. Ag2O

A. 6
B. 4
C. 3
D. 2

A. pink
B. black
C. yellow
D. brick red

A. aluminium can be recycled
B. aluminium has very low density
C. aluminium is the most abundant metal in the earth crust
D. aluminium is resistant to corrosion by organic acids.

A. Average kinetic energy of molecules
B. Vibrational kinetic energy
C. Translational kinetic energy
D. None of the above

A. Similar physical properties
B. Similar chemical properties
C. Both A and b
D. None