Reaction of Acids with Metal Carbonates and Bicarbonates

Q.

(a) What happens when dilute hydrochloric acid is added to sodium carbonate ? Write a balanced chemical equation of the reaction involved.

(b) Which gas is liberated when dilute hydrochloric acid reacts with sodium carbonate ? How will you test for the presence of this gas ?

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

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

Q. In the chlor-alkali process, _____ gas is obtained at the anode while _____ gas is obtained at the cathode.

Q.

How does carbon dioxide react with Lime water?

Q. Baking powder contains sodium hydrogen carbonate and

1. Tartaric acid
2. Calcium chloride
3. Acetic acid
4. Washing soda

Q. Question 40
Give the characteristic tests for the following gases
(a) ${\text{CO}}_2$
(b) ${\text{SO}}_2$
(c) ${\text{O}}_2$
(d) ${\text{H}}_2$

Q.

Name the gas evolved when dilute HCl reacts with sodium hydrogen carbonate. How is it recognised?

Q.

(a) What happens when an acid reacts with a metal carbonate? Explain with the help of an example. Write chemical equation of the reaction involved.

(b) What happens when carbon dioxide gas is passed through lime water :

(i) for a short time?

(ii) for a considerable time?

Write equations of the reactions involved.

Q.

When calcium carbonate reacts with dilute hydrochloric acid, a gas X is formed. When gas X is passed through lime water, it turns milky due to the formation of precipitate Y. So, Y is ____.

1. Calcium oxide

2. Calcium bicarbonate

3. Calcium carbonate

4. Calcium chloride

Q. What happens when nitric acid is added to egg shell?​

Q.

What happens when an acid reacts with a metal hydrogen carbonate? Write an equation of the reaction which takes place.

Q.

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

1. False

2. True

Q.

What happens carbon dioxide gas is bubbled through lime water:

1. In small amount
2. In excess

Q.

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

1. (g)

2. CO(g)

3. (g)

4. (g)

Q.

Write the balanced equations for the following reactions:

Calcium chloride and cold dilute sodium hydroxide solution

Q.

Write the balanced equation for the following reaction.

The reaction of carbon dioxide with calcium carbonate.

Q.

Give balanced equation of dilute nitric acid and copper carbonate?

Q.

Question 45.
A metal carbonate X on reacts with acid and gives a gas which when passed through a solution Y gives the carbonate back. On the other hand, a gas G that is obtained at the anode during electrolysis of brine is passed on dry Y, it gives a compound Z, used for disinfecting drinking water. Identify X, Y, G and Z.

Q. Balance:
Aluminium carbonate reacts with hydrochloride acid to evolve carbon dioxide gas.

Q.

Which of the following methods, A, B, C, D, or E is generally used for preparing the chlorides listed below from (i) to (v). Answer by writing down the chloride and the letter pertaining to the corresponding method. Each letter is to be used only once.

A. The action of an acid on a metal,

B. The action of an acid on an oxide or carbonate,

C. Direct combination,

D. Neutralization of an alkali by an acid

E. Precipitation (double decomposition)

(i) Copper (II) chloride

(ii) Iron (II) chloride

(iii) Iron (III) chloride

(iv) Lead (II) chloride

(v) Sodium chloride

Q.

What would you observe on adding dilute hydrochloric acid to sodium bicarbonate placed in a test tube?

Q.

12c. State one appropriate observation of the following:

A few drops of dilute hydrochloric acid are added to silver nitrate solution followed by the addition of ammonium hydroxide solution.

Q. (a) When a piece of limestone reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then a white precipitate Y is formed. On passing excess of gas X, the white precipitate dissolves forming a soluble compound Z. What are X, Y and Z?

Q.

You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.

Q.

When electricity is passed through an aqueous solution of Sodium chloride, three products are obtained. Why is the process called Chlor-alkali process?

Q.

What happens when calcium bisulphite reacts with dilute nitric acid?

1. Calcium hydroxide is formed.

2. Calcium nitrate is formed.

3. Calcium nitrite is formed.

4. Calcium sulphate is formed.

Q. Question 3
Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.

Q. The reaction of metal carbonates with acids liberates gas.

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

Q.

Name the substance which liberates Carbon dioxide from Sodium carbonate.

Q.

Which of the following gas is formed when an acid reacts with a metal carbonate or metal hydrogen carbonate?

1. Hydrogen

2. Carbon dioxide

3. Carbon monoxide

4. All of the above