Basicity of Acids

Q.

Why $\mathrm{KCl}$ is used in pH meter?

Q. Question 19.
Which of the following is acidic in nature?

(a) Lime juice
(b) Human blood
(c) Lime water
(d) Antacid

Q.

Nitric acid is ___ (monobasic/dibasic/tribasic).

Q.

What is the basicity of ${\mathrm{H}}_4{\mathrm{P}}_2{\mathrm{O}}_7$?

Q.

Write the name of the compound $\mathrm{HClO}$.

Q. Which of the following will behave as a strong acid when added to water?

1. ${\text{C}}_2{\text{H}}_5\text{COOH}$
2. ${\text{H}}_2{\text{SO}}_4$
3. $\text{HCOOH}$
4. ${\text{CH}}_3\text{COOH}$

Q.

Which among the given acids is a diprotic acid?

1. HNO₃

2. HClO₃

3. H₃PO₃

4. H₂PO₃

Q.

What are the strongest acids and bases?

Q. What is the conjugate base of $HP{O}_4^{2-}$?

Q. The monobasic acid among the following is:

1. $H_3{PO}_3$
2. $H_2{S}_2{O}_7$
3. $H_3{PO}_2$
4. $H_2{P}_2{O}_7$

Q. Sum of basicity of $H_3{PO}_4,H_3{PO}_3,H_3{PO}_2$ is equal to:

Q.

Which one of the following statements about $H_{3}B{O}_3$ is not correct ?

1. It is prepared by acidifying an aqueous solution of borax

2. It is a tribasic acid

3. It has a layer structure in which planar BO₃ units are joined by hydrogen bonds

4. It does not act as proton donor as it acts as a Lewis acid by accepting hydroxyl ion

Q. A lab technician made a salt using a strong acid and a weak base. According to you what should be the nature of the salt formed?

1. Cant be determined
2. Basic and pH more than 7
3. Acidic and pH less than 7
4. Neutral and pH equal to 7

Q. A highly concentrated acidic solution can be prepared by adding __ ml acid to 100 ml water.

1. 50
2. 80
3. 30
4. 10

Q. Which is strongest acid?

1. $H_2{SO}_4$
2. $H{NO}_3$
3. $HCl$
4. $HCl{O}_4$

Q. How is the alkalinity of an acid known?

Q. Conjugate base of a strong acid is:

1. a weak base
2. neutral
3. a weak acid
4. a strong base

Q. An acid with molecular formula $C_7{H}_6{O}_3$ forms three types of sodium salts, which are: $C_7{H}_6{O}_{3}Na,C_7{H}_6{O}_3{Na}_2$ and $C_7{H}_6{O}_3{Na}_3$.

Q. An acid with molecular formula $C_7{H}_6{O}_3$ forms three types sodium salts, i.e., $C_7{H}_5{O}_{3}Na,C_7{H}_4{O}_3{Na}_2$ and $C_7{H}_3{O}_3{Na}_3$. The basicity of the acid is:

1. Two
2. Three
3. Four
4. One

Q.

The basicity of acetic acid is ___

Q. Which of the following is a weak acid?

1. $H_{2}Te$
2. $H_{2}Se$
3. $H_{2}S$
4. $H_{2}Po$

Q. The basicity of acetic acid is ______ $(3,1,4)$.

Q. Arrange the following in order of their increasing basicity
$H_{2}O,O{H}^{-},C{H}_{3}OH,C{H}_3{O}^{-}$

Q. Write the conjugate base of $H_{2}P{O}_4{}^{-}$?

1. $H_{3}P{O}_4$
2. $HP{O}_4^{2-}$
3. $P{O}_4^{3-}$
4. $H_{2}P{O}_3^{-}$

Q. Boric acid $\left(H_{3}B{O}_3\right)$ is:

1. tribasic
2. aprotic
3. dibasic
4. monobasic

Q.

Nitric acid is________

1. Monobasic

2. Dibasic

3. Tribasic

4. Triprotic acid

Q. Basicity of acetic acid is:

1. 4
2. 3
3. 1
4. 2

Q.

The basicity of HCl is ___ .

Q. The formula weight of an acid is 82 amu. In a titration, $100c{m}^3$ of a solution of this acid containing 39.0 g of the acid per litre was completely neutralized by $95c{m}^3$ of aqueous solution of NaOH containing 40 g of NaOH in 1 l of solution. What is the basicity of the acid?

1. 2
2. 1
3. 4
4. 3

Q. The basicity of acetic acid is the same as the basicity of:

1. $H_{2}S{O}_4$
2. $HN{O}_3$
3. $H_{3}P{O}_4$
4. $H_{2}C{O}_3$