ENTRANCE TEST – 2012 Multiple Questions and Answers.




26.A buffer solution is that which resists/minimizes the change in
A. pOH
B. pH
C. pKa
D. pKb

27.In some reactions, a product formed acts as a catalyst. The phenomenon is called
A. Negative Catalysis
B. Activation of Catalyst
C. Hetergeneous catalysis
D. Autocatalysis

28.The reaction rate in forward direction decreases with the passage of time because
A. Concentration of reactants decrease
B. Concentration of product decreases
C. The order of reaction changes
D. Temperature of the system changes

29.Which one remains same along a period?
A. Atomic radius
B. Melting point
C. Number of shells (orbits)
D. Electrical conductivity

30.More the ionization energy of an element:
A. More the electropositivity
B. More the reducing power
C. Less the metallic character
D. Bigger the atomic radius

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