Test: Acid-Base Equilibrium - JEE MCQ

Dissociation of electrolytes increases with increase in temperature: So, also increases.
∴ pH of the buffer solution decreases.

(i) (Bronsted acid)
(ii) (Bronsted base)
(iii) (Bronsted base)
(iv) (Bronsted acid)

(vii) (Bronsted base)
(viii) (Bronsted acid)
(ix) (Bronsted base)
Hence, and (two species act as acid as well as base).

In water, barium hydroxide is hydrolysed as follows.

pH + pOH = 14
pH = 14−pOH
= 14−2.69
= 11.3
≈ 11.0

According to Bronsted-Lowry concept of acids and bases, an acid is a substance which can give a proton and a base is a substance which accepts a proton.
According to Lewis concept of acids and bases, an acid is a substance which can accept a lone pair of electrons whereas a base is a substance which can donate a lone pair of electrons.
involves loss and gain of electrons.
is coordinated to by donating electrons (LHS). It is then removed by withdrawing electrons.

Follow Lowry Bronsted concept for conjugate pair. Acid strength follows the order conjugate base will follow the order

Higher the value of lower will be the value of i.e. higher will be the acidic nature. Further and are conjugate base of the acids and respectively hence the correct order of base strength will be

(∵ stronger the acid weaker will be its conjugate base)

The more is the value of equilibrium constant, the more is the completion of reaction or more is the concentration of products i.e. the order of relative strength would be

Molarity of diluted solution;