Introduction to Acid, Base and Salts

Q. Pick the incorrect pair.

1. None of the above
2. Base - bitter
3. Acid - sour
4. Salt - sweet

Q. Identify X and Y from the given equation, if the given acid undergoes ionisation.

${\mathrm{CH}}_3\mathrm{COOH}\left(l\right)\stackrel{H_{2}O}{\to }X+Y$

1. $X:{\mathrm{OH}}^{+},Y:{\mathrm{CH}}_3{\mathrm{COO}}^{-}$
2. $X:H^{+},Y:{\mathrm{CH}}_3{\mathrm{COO}}^{-}$
3. $X:{\mathrm{OH}}^{-},Y:{\mathrm{CH}}_3{\mathrm{COO}}^{-}$
4. $X:H^{+},Y:{{\mathrm{CH}}_3}^{-}$

Q.

Choose the weakest acid from the given options.

1. Citric acid

2. Nitric acid

3. Sulphuric acid

4. Hydrochloric acid

Q.

Pick the strongest acid from the folllowing options.

1. Acetic acid

2. Oxalic acid

3. Citric acid

4. Nitric acid

Q.

Hydrochloric acid comes under which of the following categories?

1. Weak acid

2. Strong base

3. Strong acid

4. Weak base

Q. Identify the characteristics of a salt from the options given below.

1. Electrically neutral
2. Covalent compounds
3. Always acidic
4. Ionic compounds

Q. A strip of magnesium is burnt in air and the product obtained is allowed to react with sulphuric acid. Which of the following ions are present in the final salt obtained?

1. ${\text{Mg}}^{2+}$ and ${\text{SO}}_4^{2-}$
2. ${\text{Mg}}^{+}$ and ${\text{SO}}_4^{2-}$
3. ${\text{Mg}}^{2+}$ and ${\text{SO}}_3^{2-}$
4. ${\text{H}}^{+}$ and ${\text{SO}}_3^{2-}$

Q.

Which one of the following is the weakest acid?

1. HF

2. HCl

3. HBr

4. HI

Q.

Name the salt which is mixed with carbon dioxide and calcium carbonate in the manufacturing of glass.

1. Calcium sulphate

2. Sodium bicarbonate

3. Sodium carbonate

4. Copper sulphate

Q.

The common names of $CaO$ and $Ca(OH{)}_2$ respectively are

1. Slaked lime and quick lime

2. Quick lime and slaked lime

3. Calcium oxide and Calcium hydroxide

4. Calcium hydroxide and Calcium oxide