Equilibrium Tes...

Which of the following will not show common ion effect on addition of $$HCl$$ ?

For preparing a buffer solution of $$pH=7.0$$, which buffer system you will choose?

Which of the following is an example of weak electrolyte?

A monoprotic acid in $$100\ M$$ solution is $$0.001\%$$ ionized. The dissociation constant of this acid is:

Ionization constant $$({ K }_{ a })$$ for three weak monobasic acids $$HA$$, $$HB$$ and $$HD$$ are $${ 10 }^{ -3 },{ 10 }^{ -7 }$$ and $${ 10 }^{ -9 }$$ ,respectively at $${ 25 }^{ o }C$$. Which of the following is correct prediction?

One liter of solution contains $${ 10 }^{ -5 }$$ moles of $${ H }^{ + }$$ ions at $$ { 25 }^{ o }C$$.Percentage ionisation of water in solution is:

When 0.1 mole of an acid is added to 2 lit of a buffer solution, the pH of the buffer decreases by 0.5. The buffer capacity of the solution is:

Which of the following has maximum $$pK_a$$ :-

 At $$25^{o}C$$, the dissociation constant for pure water is given by :-

Which of the following is a biodegradable polymer?