Reaction of Acids with Metal Carbonates and Bicarbonates

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

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

Q.

Complete the following reaction:

${\text{Na}}_2{\text{CO}}_3\text{(s)}+{\text{H}}_2{\text{SO}}_4\text{(aq)}\to ?$

1. $N{a}_{2}S{O}_4+C{O}_2$
2. $N{a}_{2}S{O}_4+H_{2}O+C{O}_2$
3. $N{a}_{2}C{O}_3+H_{2}O+C{O}_2$
4. $N{a}_{2}S{O}_4+H_{2}O$

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, $CaC{O}_3$
4. Milkiness, $Ca(HC{O}_3{)}_2$

Q. What is the gaseous product that is released when sodium bicarbonate reacts with sulphuric acid?

1. Hydrogen
2. Oxygen
3. Carbon dioxide
4. Sulphur dioxide

Q.

Identify the compound which on reacting with sulphuric acid produces a gas that turns lime water milky.

1. $CaS{O}_4+HCl\to$
2. $C{H}_{3}COOH+HCl\to$
3. $NaHC{O}_3+HCl\to$
4. $NaOH+HCl\to$

Q. Identify which of these are basic:

(i) $CaC{O}_3$
(ii) $NaHC{O}_3$
(iii) $KOH$
(iv) $MgC{l}_2$
(v) $NaOH$
(vi) $C{H}_{3}COOH$

1. (iii), (iv)
2. (iv)
3. (i), (ii), (iv), (v)
4. (i), (ii), (iii), (iv)

Q. Polar covalent bond is when the electrons shared by the atoms spend a greater amount of time, on an average, closer to one nucleus than the other nucleus of the pair.

1. True
2. False

Q.

Which gas is released when a base reacts with a metal carbonate?

1. (g)

2. CO(g)

3. (g)

4. (g)

Q.

Acids react with carbonates to give carbon dioxide as one of the products.

1. False

2. True

Q. Metal carbonate reacts with an acid to produce a gas. The gas formed is:

1. hydrogen
2. oxygen
3. nitrogen
4. carbon dioxide