Test: Coal And Petroleum - 4


15 Questions MCQ Test Science Class 8 | Test: Coal And Petroleum - 4


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This mock test of Test: Coal And Petroleum - 4 for Class 8 helps you for every Class 8 entrance exam. This contains 15 Multiple Choice Questions for Class 8 Test: Coal And Petroleum - 4 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Coal And Petroleum - 4 quiz give you a good mix of easy questions and tough questions. Class 8 students definitely take this Test: Coal And Petroleum - 4 exercise for a better result in the exam. You can find other Test: Coal And Petroleum - 4 extra questions, long questions & short questions for Class 8 on EduRev as well by searching above.
QUESTION: 1

Water is a

Solution:
QUESTION: 2

When coal burns in air then

Solution:

When coal burns in air, the carbon component of the coal comes in contact with the oxygen in the air and releases carbon dioxide CO2  when combined.

QUESTION: 3

The purest form of carbon is

Solution:
QUESTION: 4

Coal tar contains about

Solution:
QUESTION: 5

The first oil well was drilled in

Solution:

The U.S. petroleum industry began in 1859 when a former railroad conductor drilled a well 69.5 feet deep in Northwestern Pennsylvania.

QUESTION: 6

PCRA stands for

Solution:
QUESTION: 7

An example of fossil fuel is

Solution:
QUESTION: 8

Water is a natural resource.

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QUESTION: 9

Wood is a fossil fuel.

Solution:
QUESTION: 10

Oxygen gas is produced when coal burns.

Solution:

Fuels burn when they react with oxygen in the air. If there is plenty of air, complete combustion happens.  Coal is mostly carbon. During complete combustion, carbon is oxidized to carbon dioxide:
carbon + oxygen -- carbon dioxide
If there is insufficient air for complete combustion, incomplete combustion (also called partial combustion)  happens. Hydrogen is still oxidized to water, but carbon monoxide forms instead of carbon dioxide.

So, the correct answer is 'Carbon monoxide'.

QUESTION: 11

Coke is almost the purest form of carbon.

Solution:
QUESTION: 12

Coal gas is formed when wood is heated in absence of air.

Solution:

When wood is heated above 270° C it begins to carbonize. If air is absent, the final product is charcoal. When the wood is dry it's temperature rises, and at about 270°C , it begins to spontaneously decompose. 

QUESTION: 13

First oil well in India was drilled at Makum.

Solution:

On 26 March 1867, oil was struck at  merely 118 feet(35.97-m) in Asia's first mechanically drilled well at Makum  near Margherita area of upper Assam.

QUESTION: 14

The slow process of conversion of dead vegetation into coal is called _____.

Solution:

 Plants contain mainly carbon, which gets converted into coal. Hence, the slow process of conversion of dead vegetation into coal is called carbonisation.

QUESTION: 15

Petroleum is called black gold also.

Solution:

Petroleum is also known as Black Gold -  because when crude oil is extracted from the land it is black in color. People call it gold because of its oils and value . It is very difficult to find. So it is called Black Gold.

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