Types of Salts

Q. Partial neutralisation of a polybasic acid gives

1. Basic salt
2. Normal salt
3. Double salt
4. Acidic salt

Q. An acidic salt is formed by the reaction between:

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

Q. The following table shows the type of salt obtained from the neutralisation reaction.

$\begin{array}{cccc}& \text{Acid}& \text{Base}& \text{Type of Salt}\\ \left(i\right)& \text{Nitric acid}& \text{X}& \text{Neutral}\\ \left(ii\right)& \text{Y}& \text{Ammonium hydroxide}& \text{Acidic}\end{array}$

Identify the unknown reactants used inorder to obtain given type of salt.

1. X- Ammonium hydroxide
   Y- Acetic acid
2. X- Ammonia
   Y- Carbonic acid
3. X- Potassium hydroxide
   Y- Sulphuric acid
4. X- Sodium hydroxide
   Y- Acetic acid

Q. Match the given salts with their applications.

1. Sodium bicarbonate
2. 
3. 
4. Sodium chloride
5. 
6. Sodium carbonate

Q. The following table shows the type of salt obtained from the neutralisation reaction.

$\begin{array}{cccc}& \text{Acid}& \text{Base}& \text{Type of Salt}\\ \left(i\right)& \text{Nitric acid}& \text{X}& \text{Neutral}\\ \left(ii\right)& \text{Y}& \text{Ammonium hydroxide}& \text{Acidic}\end{array}$

Identify the unknown reactants used inorder to obtain given type of salt.

1. X- Ammonium hydroxide
   Y- Acetic acid
2. X- Ammonia
   Y- Carbonic acid
3. X- Potassium hydroxide
   Y- Sulphuric acid
4. X- Sodium hydroxide
   Y- Acetic acid

Q. Presence of a base gives substances bitter taste.

1. True
2. False

Q. $NaCl\left(aq\right)$ is electrolysed. The $pH$ of solution after electrolysis will

1. decrease
2. increase
3. $<7$
4. $>7$

Q. The following table shows the type of salt obtained from the neutralisation reaction.

$\begin{array}{cccc}& \text{Acid}& \text{Base}& \text{Type of Salt}\\ \left(i\right)& \text{Nitric acid}& \text{X}& \text{Neutral}\\ \left(ii\right)& \text{Y}& \text{Ammonium hydroxide}& \text{Acidic}\end{array}$

Identify the unknown reactants used inorder to obtain given type of salt.

1. X- Ammonia
   Y- Carbonic acid
2. X- Sodium hydroxide
   Y- Acetic acid
3. X- Ammonium hydroxide
   Y- Acetic acid
4. X- Potassium hydroxide
   Y- Sulphuric acid

Q. Salt A is formed by the reaction of a strong acid with a strong base whereas salt B is formed by the reaction of a weak acid and a strong base. Identify the correct relation between the pH of salt A and B.​

Q. ${\text{CH}}_3\text{COOH(aq)}+\text{NaOH(aq)}\to {\text{CH}}_3\text{COONa(s)}+{\text{H}}_2\text{O(l)}$

The nature of the salt obtained in the above reaction is acidic.

1. True
2. False

Q.
Equal volumes of hydrochloric acid and sodium hydroxide solutions of same concentration are mixed on the pH paper. What would be the colour obtained?

(a) Red
(b) Yellow
(c) Yellowish green
(d) Blue

Q. The chemical formula of washing soda is:

1. $\text{NaOH}$
2. $\text{NaCl}$
3. ${\text{NaHCO}}_3$
4. ${\text{Na}}_2{\text{CO}}_3\cdot 10{\text{H}}_2\text{O}$

Q. Presence of a base gives substances bitter taste.

1. True
2. False

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. Presence of a base gives substances bitter taste.

1. False
2. True

Q. Which one of the following salts on dissolution in water will give a solution of pH less than 7?

1. $\text{NaCl}$
2. $\text{KCN}$
3. ${\text{CH}}_3\text{COONa}$
4. ${\text{NH}}_4\text{Cl}$