Charcoal

Q. Which among the following is not obtained by destructive distillation of coal?

1. Coke
2. Peat
3. Coal tar
4. Coal gas

Q.

Define the following :

(a) Carbonization

(b) Adsorption

(c) Bone black

Q. The raw materials used to prepare charcoal are:

1. wood
2. bone
3. sugar
4. plastic

Q.

The solid residue obtained on the destructive distillation of wood is known as ___.

1. carbonia

2. charcoal

3. carbon plank

4. ethanol

Q. Which among of the following is unaffected by water?

1. Magnesium
2. Gold
3. Iron
4. Aluminium

Q. Sugar charcoal is obtained by adding concentrated to cane sugar.

1. sulphuric acid
2. sodium hydroxide
3. hydrochloric acid

Q.

How is charcoal prepared?

1. When wood is heated with cow dung and co₂ then the residue is charcoal.

2. When wood is boiled in water then after evaporation the residue is charcoal.

3. When wood is burnt in limited supply of oxygen & water until volatile materials are removed, residue is charcoal.

4. All of these.

Q. Which of the following statements regarding natural resources is true?

1. Sun is an exhaustible natural resource as it will die one day.
2. Petroleum is a pure substance that is used as a fuel in automobiles.
3. The use of CNG is recommended by the government because it does not cause any pollution.
4. The usage of fossil fuels should be minimised since it causes pollution, and the known reserve will only last for a few hundred years.

Q. On adding a compound X to a solution of red litmus, Aman observed that the solution turned colourless. Identify X.

1. Limestone
2. Activated charcoal
3. Sodium hydroxide
4. Sulphuric acid

Q.

The solid residue obtained on the destructive distillation of wood is known as ___.

1. charcoal

2. ethanol

3. carbonia

4. carbon plank

Q. What are the major classifications of charcoal?

1. Plant charcoal
2. Carbonate charcoal
3. Animal charcoal
4. Amorphous charcoal

Q. Which of the following is an almost pure form of carbon?

1. Coal gas
2. Kerosene
3. Coal tar
4. Coke