Formation of Salts

Q.

Which one is not an acid salt?

1. NaH₂PO₄

2. NaH₂PO₃

3. Nacl

4. NaH₂PO₂

Q.

An acid reacts with a base to form salt and water.

1. False

2. True

Q.

How many types of salts can be formed by phosphoric acid?

1. 1

2. 2

3. 3

4. 4

Q.

Salts are ionic compounds which dissociate into positively charged ions called anions and negatively charged ions called cations when they are dissolved in an aqueous solution.

1. True

2. False

Q.

Find the formula of potassium nitrate.

Q.

The magnitude of charge on individual cation and anion of a salt has to be equal.

1. True

2. False

Q.

23. What is salt? Name two salts which are insoluble in water.

Q. A salt formed after the neutralisation reaction is a combination of of an acid and of a base.

1. anion
2. mass
3. cation
4. volume

Q. What visible change is observed when ${\text{CO}}_2$ is passed through lime water and that change is due to the formation of which compound?

1. Blue color, $CuS{O}_4$
2. Green color, $CuC{O}_3$
3. Milkiness, $Ca(HC{O}_3{)}_2$
4. Milkiness, $CaC{O}_3$

Q. The equation between a base and an acid is $XOH+HY\to XY+H_{2}O$
Which of the following is the cation part of salt?

1. X
2. OH
3. H
4. Y

Q.

When metal oxides or metal hydroxides react with ___, they form salt and water.

Q. What is the product formed when $K_{2}C{O}_3$ react with $HCl$ ?

1. $K_{2}O+H_{2}O+C{l}_2+C{O}_2$
2. $KCl+H_2+C{O}_2$
3. $KCl+H_{2}O+C$
4. $KCl+H_{2}O+C{O}_2$

Q. Bleaching powder and bleach solution are produced on a large scale and used in several household products. The effectiveness of bleach solution is often measured by iodometry.

Bleaching powder contains a salt of an oxoacid as one of its components. The anhydride of that oxoacid is

1. $C{l}_{2}O$
2. $C{l}_2{O}_7$
3. $Cl{O}_2$
4. $C{l}_2{O}_6$

Q. $2H_2+O_2\to 2H_{2}O$

The reducing agent in the above reaction is ___

Q. Fill in the blank (do not have to balance):
$MgO+HCl\to$__________

1. $MgC{l}_2+H_{2}O$
2. $Mg(OH{)}_2+H_{2}O+C{l}_2$
3. None of these
4. No reaction

Q.

An acid reacts with a base to form ______ and water.

1. Salt

2. Concentrated acid

3. Dilute acid

4. Carbon dioxide

Q.

Which of the following salts when dissolved in water will get hydrolysed to form an acidic solution?

1. $NaCl$

2. $KCl$

3. ${NH}_{4}Cl$

4. $CaC{l}_2$

Q.

A compound X is prepared from gypsum has the property of hardening when mixed with proper quantity of water.

(a) Identify the compound X.

(b) Write the chemical equation for its preparation.

(c) For what purpose is it used in hospitals?

Q.

Salts are formed when:

1. Acid and Base reacts with each other

2. Metal reacts with acid/base

3. Metallic oxide reacts with acids

4. All of the given options are correct.

Q. What is exactly the ph value of distilled water ?

Q.

How many types of salts can be formed by phosphoric acid?

1. 2

2. 3

3. 1

4. 4

Q.

Acid reacts with metal oxide to form _______.

1. Salt and hydrogen

2. Base and water

3. Salt and water

4. Metal and salt

Q.

Potash alum is an example of a:

1. Acid salt

2. Double salt

3. Simple salt

4. Complex salt