Olympiad Test: Combustion And Flame - 1


10 Questions MCQ Test Science Olympiad Class 8 | Olympiad Test: Combustion And Flame - 1


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Attempt Olympiad Test: Combustion And Flame - 1 | 10 questions in 20 minutes | Mock test for Class 8 preparation | Free important questions MCQ to study Science Olympiad Class 8 for Class 8 Exam | Download free PDF with solutions
QUESTION: 1

Calorific value of a fuel is the heat energy produced when

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QUESTION: 2

Which of the following is the combination of acid rain?

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QUESTION: 3

Good fuels have

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QUESTION: 4

Log of wood does not burn very easily but it is easy to burn small pieces of wood dipped in kerosene oil. This is because kerosene oil provides proper

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QUESTION: 5

The chemicals present in fire extinguisher are

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QUESTION: 6

Which of these is(are) liquid fuel(s) ?

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QUESTION: 7

Which poisonous gas is formed as a result of incomplete combustion?

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QUESTION: 8

The hottest zone of a candle flame is

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QUESTION: 9

Which of these fuels has the highest calorific value?

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QUESTION: 10

When a hydrocarbon (present in fuels) burns completely, the products formed are

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