Combustion and Flame Workbook - Class 8 CBSE
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Q1 · MCQ · 1 mark
Which of the following is an example of rapid combustion?
Q2 · FILL · 1 mark
The lowest temperature at which a substance catches fire is called its ____ temperature.
Q3 · SHORT · 2 marks
Why is spreading water not effective in putting out electrical fires?
Q4 · MCQ · 1 mark
Which zone of a candle flame is the hottest?
Q5 · FILL · 1 mark
Combustible substances are also known as ____.
Q6 · SHORT · 2 marks
What are the three essential requirements for combustion to occur?
Q7 · MCQ · 1 mark
Which gas is necessary for combustion?
Q8 · FILL · 1 mark
A substance that does not burn in the presence of air is called a ____ substance.
Q9 · SHORT · 2 marks
Give two examples of complete combustion.
Q10 · MCQ · 1 mark
Which of the following is not a fire extinguisher?