Coal and Petroleum

Q.

How are fossil fuels formed ?

Q.

Name any three major sources of air pollution.

Q.

Approximately for how many years will petroleum resources last?

1. 40

2. 400

3. 4

4. none of these

Q.

What kind of gases are released while burning fossil fuels?

Q.

While heating a liquid in a test tube, the mouth of the test tube should be:

1. Away from you

2. Towards you

3. In the sink

4. Towards your neighbour

Q.

How is charcoal prepared ? Explain why, charcoal is a better fuel than wood.

Q.

Is coal a fossil fuel? Is wood a fossil fuel?

Q.

Coal is most abundantly found fossil fuel. Explain.

Q.

Which chemical is added to LPG cylinders to detect gas leakage?

Q.

Which of the following is not a method used for conservation of natural resources?

1. Planting Tress

2. Using Smokeless Stove

3. Cutting down of trees

4. Avoiding wastage of water.

Q. State whether the following statement is True or False:
Incomplete combustion of carbon is due to insufficient amount of air (oxygen) which leads to the formation of carbon monoxide (CO).

1. True
2. False

Q. Why Coal is used in thermal Power Plant and Not charcoal...even though is good fuel in comparison to Coal?

Q.

Is Coal A Hydrocarbon?

Q.

What is the composition of liquefied petroleum gas (LPG) ?

Q.

Which of the following gas is released by the usage of petroleum and coal but not poisonous?

1. Sulfur Dioxide

2. Nitrogen Oxide

3. Carbon Monoxide

4. Carbon Dioxide

Q. Why we use petrol or diesel in vehicles instead of using coal or any other fuel?

Q.

Is Uranium a Fossil Fuel

Q. LPG consists mainly of :
(a) butane (b) ethane (c) butanone (d) methane

Q.

What Are the Pillars of Sustainability?

Q.

When wood is heated in the absence of air the residue is called…………….

Q.

Approximately for how many years will coal last if we maintain the current rate of consumption?

1. 1000

2. 500

3. 200

4. 100

Q. Statement 1: Charcoal is a better fuel than wood.
Statement 2: Charcoal burns without flames, is comparatively smokeless and has higher heat generation.

1. Statement 1 and Statement 2 are correct, but statement 2 is not the reason for statement 1.
2. Statement 1 is correct and statement 2 are incorrect.
3. Statement 1 and statement 2 are correct, statement 2 is the reason for statement 1.
4. Both statements are incorrect.

Q. Petrol engine has higher efficiency as compared to diesel engine.

1. True
2. False

Q. Which mineral is called 'liquid gold'?

1. Coal
2. Gold
3. Petroleum
4. Iron

Q.

What Are the 3 Principles of Sustainability?

Q.

Which of the following is a gas released by the usage of petroleum and coal but not poisonous?

1. Carbon Monoxide

2. Sulfur Dioxide

3. Nitrogen Oxide

4. Carbon Dioxide

Q.

What substance is obtained as a residue when wood is burnt in a limited supply of air ?

Q. The use of charcoal is discouraged even though it is a better fuel than coal, because:

1. Charcoal burns with flames
2. coal burns comparitively smokeless
3. charcoal is prepared from destructive distillation of wood
4. coal has a higher heat generation efficiency

Q.

Name/State a solid fossil fuel:

Q. Reaction (i) represents complete combustion of carbon forming carbon dioxide (CO₂) whereas the reaction (ii) shows the formation of carbon monoxide (CO) due to incomplete combustion. Balance the equation (ii) and find the value of ‘X’ which will explain the insufficient amount of oxygen involved.
(i) $2C+2O_2\to 2C{O}_2$
(ii) $2C+x{O}_2\to 2CO$

1. 1
2. 0.5
3. 4
4. 2