Olympiad Test: Combustion And Flame - 1
10 Questions MCQ Test Science Olympiad Class 8 | Olympiad Test: Combustion And Flame - 1
Calorific value of a fuel is the heat energy produced when
Which of the following is the combination of acid rain?
Good fuels have
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
The chemicals present in fire extinguisher are
Which of these is(are) liquid fuel(s) ?
Which poisonous gas is formed as a result of incomplete combustion?
The hottest zone of a candle flame is
Which of these fuels has the highest calorific value?
When a hydrocarbon (present in fuels) burns completely, the products formed are
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