Types of Salts

Q.

Is ${\mathrm{NH}}_4\mathrm{Cl}$ a basic salt?

Q.

What is monobasic acid?

Q.

Classify salts and explain each of them with examples.

Q.

The pH of a solution is zero. The nature of the solution is

1. Acidic

2. Basic

3. Neutral

4. Amphoteric

Q.

When blue copper sulphate crystals are heated, they become _______________ (white/black).

Q. Explain the concept of acid and base?

Q. Washing soda is a basic salt while baking soda is an acidic salt.

1. True
2. False

Q.

Toothpaste has pH value

1. 7

2. 7.5

3. 6.5

4. 9

Q. A strong acid and a weak base reacts to form a salt. What will be the pH value of this salt in aqueous solution?

1. pH < 7
2. pH = 7
3. pH > 7
4. Variable pH, may be less or more than 7 at a particular instance

Q.

A solution has a pH of 9. On dilution the pH value

1. decreases

2. increases

3. remain same

4. none of these

Q. Why do acids not show acidic behaviour in the absence of water?

Q.

How many rooms are there in the human heart?

Q.

Does dry HCl gas turn blue litmus to red?

Q. (a) Give the pH value of pure water. Does it change if common salt is added to it?​

Q. what does the term sodium salt of acid mean ??

Q.

Two solution A and B were found to have pH value of 6 and 8 respectively. The inference which can be drawn is that

1. the acid strength of the solution B is higher than that of A.

2. A is an acid while B is a base

3. both are acidic solutions

4. both are basic solutions.

Q. Hydrochloric acid completely ionizes in solution hence it is

1. strong monoacid base
2. weak monoacid base
3. strong monobasic acid
4. weak monobasic acid

Q.

Write the formula of a salt of a

(a) strong acid and a strong base

(b) strong base and a weak acid

Q.

Soluble salts are prepared in solutions only.

1. True

2. False

Q.

A sample of groundwater, which freely lathers with soap solution, is called _________ water.

Q.

$pH$ of pure water is

1. $0$

2. $1$

3. $7$

4. $14$

Q.

Which of the following indicators turns yellow in basic medium?

1. Thymol blue

2. Litmus paper

3. Phenolphthalein

4. Methyl Orange

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.

Explain the effect of heat on blue crystals of copper sulphate

Q. Sulphuric acid is a dibasic acid. Hence, it forms:

1. Acidic salt
2. Basic and acidic salts
3. Acidic and normal salts
4. Double salts

Q. Acetic acid does not form an acid salt but forms a normal salt.

1. True
2. False

Q.

Write a short note on the advantage of soft and hard water

Q. Carbonic acid gives an acid salt but hydrochloric acid does not. Explain

Q. Curd should not be stored in copper or brass vessels.

1. True
2. False

Q. If a solution changes the colour of litmus from red to blue, what can you say about its $pH$?​