Acids-Bases and pH concept

According to Bronsted- Lowry Theory, acids are (a)   donor.

Which of the following is the conjugate base of HNO₃ ?

• H₂NO₃⁺

• NO₃^-

• NO₃⁺

• H₂NO₃^-

Which of the following is the conjugate acid of C₂O₄^2- ?

• HC₂O₄^-

• HC₂O₄^-3

• CO₄^-2

• CO₂

In the figure, Solution I represents (a)   (strong/weak) acid solution.

Which of the following is true ?

• Weak acids completely ionize in water.

• Strong acids are good conductor of electricity.

• Weak bases are good conductor of electricity.

• Strong acids partially ionize in water.

pH value of a solution is 6. So, pOH value of this solution is (a)  

In an aqueous solution, [OH^-] = 10^-3 M. So, pH value of this solution is (a)  

The value of Kw at 25 C is always _____________

• 1.0 x 10^-11

• 1.0 x 10^-12

• 1.0 x 10^-13

• 1.0 x 10^-14

pOH value of an acidic solution is (a)   (more/less) than that of a basic solution.

When a strong acid solution is added to water__________________

• pH of the solution increases

• [H⁺][OH^-] increases

• [H⁺] in the solution increases.

• pOH of the solution decreases