8th Grade > Chemistry
COAL AND PETROLEUM MCQs
Total Questions : 55
| Page 3 of 6 pages
Answer: Option A. -> Street Lighting
:
A
Coal gas is CO2& CO. It is used as fuel and earlier in the year1810 itwas used for street lighting in London.
Whereas, mosquito repellent generally contains propane, petrol is used for the manufacture of paintand manure formation requires ammonia.
:
A
Coal gas is CO2& CO. It is used as fuel and earlier in the year1810 itwas used for street lighting in London.
Whereas, mosquito repellent generally contains propane, petrol is used for the manufacture of paintand manure formation requires ammonia.
Answer: Option B. -> A chemical with a pungent odour is added in LPG/CNG to detect leakage.
:
B
Any accidental leakage can cause an explosion. If the gas leaks in any closed space such as kitchen, etc. then on lighting a matchstick, an explosive mixture will burst into flame causing fire in the house and can cause serious burn injuries.
In order to prevent this, LPG companies add a chemical ethyl mercaptan which helps in detection of the leakage because of the smell imparted.
:
B
Any accidental leakage can cause an explosion. If the gas leaks in any closed space such as kitchen, etc. then on lighting a matchstick, an explosive mixture will burst into flame causing fire in the house and can cause serious burn injuries.
In order to prevent this, LPG companies add a chemical ethyl mercaptan which helps in detection of the leakage because of the smell imparted.
Answer: Option B. -> black gold
:
B
Many useful substances are obtained from petroleum and natural gas. These are termed as petrochemicals. These are used in the manufacture of detergents, fibres (polyester, nylon, acrylic etc.), polythene and other man-made plastics. Hydrogen gas obtained from natural gas, is used inthe production of fertilisers (urea). Due to its great commercial importance, petroleum is also called ‘black gold’.
:
B
Many useful substances are obtained from petroleum and natural gas. These are termed as petrochemicals. These are used in the manufacture of detergents, fibres (polyester, nylon, acrylic etc.), polythene and other man-made plastics. Hydrogen gas obtained from natural gas, is used inthe production of fertilisers (urea). Due to its great commercial importance, petroleum is also called ‘black gold’.
Answer: Option D. -> Natural gas
:
D
Natural gas is stored under high pressure as Compressed Natural Gas (CNG). CNG is used for power generation. It is also a less polluting fuel used for automobiles. The great advantage of CNG is that it can be used directly for burning, in homes and factories. It also has a higher calorific value than most of the other fuels.
:
D
Natural gas is stored under high pressure as Compressed Natural Gas (CNG). CNG is used for power generation. It is also a less polluting fuel used for automobiles. The great advantage of CNG is that it can be used directly for burning, in homes and factories. It also has a higher calorific value than most of the other fuels.
Answer: Option C. -> Carbon dioxide
:
C
Coal is mainly composed of carbon. When coal is burnt in the presence of air, carbon reacts with oxygen gas that is present in air (atmosphere) and produces carbon dioxide gas (CO2).
When carbon (coal) is burnt inlimited presence of oxygen, carbon monoxide (CO) is produced.
:
C
Coal is mainly composed of carbon. When coal is burnt in the presence of air, carbon reacts with oxygen gas that is present in air (atmosphere) and produces carbon dioxide gas (CO2).
When carbon (coal) is burnt inlimited presence of oxygen, carbon monoxide (CO) is produced.
Answer: Option A. ->
Anthracite
:
A
:
A
Different types of coal have different carbon content.
- Anthracite has the highest carbon content, between 92% to 98% and is often referred to as hard coal for this reason.
- Bituminous coal has a carbon content between 77% to 87%.
- Lignite has a carbon content between 60% to 70%.
- Peat has the lowest carbon content, less than 60%.
Answer: Option B. ->
Natural Gas
:
B
:
B
Natural gas is stored under high pressure as Compressed Natural Gas (CNG). It is a cleaner fuel as it emits less toxic gases into the atmosphere than other fuels like petrol, diesel and coal upon combustion. Hence, it is now being used as a fuel for transport vehicles.
Answer: Option B. ->
Coal tar
:
B
Coal tar is a thick black liquid formed during the industrial processing of coal. It has an unpleasant odour and has high viscosity. It is used to manufacture various substances like synthetic dyes, paints, drugs and etc.
:
B
Coal tar is a thick black liquid formed during the industrial processing of coal. It has an unpleasant odour and has high viscosity. It is used to manufacture various substances like synthetic dyes, paints, drugs and etc.
Answer: Option A. ->
True
:
A
Crude oil or petroleum has components like petrol, diesel, kerosene, etc. These products have different boiling points which are useful in separating them through fractional distillation.
:
A
Crude oil or petroleum has components like petrol, diesel, kerosene, etc. These products have different boiling points which are useful in separating them through fractional distillation.
Answer: Option A. ->
Black thick liquid
:
A, B, and C
Coal tar is a by-product obtained due to distructive distillation of coal. It is a black, thick liquid with unpleasant smell. It is a mixture of about 200 substances.
However, petroleum is known as liquid gold
:
A, B, and C
Coal tar is a by-product obtained due to distructive distillation of coal. It is a black, thick liquid with unpleasant smell. It is a mixture of about 200 substances.
However, petroleum is known as liquid gold
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