EASY
Earn 100

The amount of heat energy produced on complete combustion of 1 kg of fuel is called its  .

50% studentsanswered this correctly

Important Questions on Combustion and Flame

MEDIUM
Science>Chemistry>Combustion and Flame>Combustion
List any three advantages and disadvantages of solar energy. 
EASY
Science>Chemistry>Combustion and Flame>Combustion
Solar energy is treated as the energy source of the future. Write any two solar devices working on solar energy that can be utilised in daily life.
EASY
Science>Chemistry>Combustion and Flame>Combustion
Name two uses biogas.
EASY
Science>Chemistry>Combustion and Flame>Combustion
Which of the following is the main component of petroleum gas?
MEDIUM
Science>Chemistry>Combustion and Flame>Combustion

Label 1 and 2 in the given figure.

Question Image

MEDIUM
Science>Chemistry>Combustion and Flame>Combustion
Write any three advantages and disadvantages of solar cell panels.
EASY
Science>Chemistry>Combustion and Flame>Combustion
Which of the following is not an example of a bio-mass energy source?
EASY
Science>Chemistry>Combustion and Flame>Combustion
What is meant by renewable and non-renewable sources of energy? Give one example of each
MEDIUM
Science>Chemistry>Combustion and Flame>Combustion
Name the major constituent of biogas. Write the properties of biogas which make it a good fuel.
MEDIUM
Science>Chemistry>Combustion and Flame>Combustion
Name the two devices that work using heat energy of the sun.
EASY
Science>Chemistry>Combustion and Flame>Combustion
Write one example each for fossil fuels in a solid and liquid state.
EASY
Science>Chemistry>Combustion and Flame>Combustion

What are the limitations in harnessing wind energy?

EASY
Science>Chemistry>Combustion and Flame>Combustion
Which fossil fuel produces ammonia when distilled in the absence of air?
EASY
Science>Chemistry>Combustion and Flame>Combustion
Which of the following is not an example of a bio-mass energy source?
MEDIUM
Science>Chemistry>Combustion and Flame>Combustion
Draw a labelled diagram of the Solar cooker.
MEDIUM
Science>Chemistry>Combustion and Flame>Combustion

Give an example of non-conventional energy with the help of which electricity can be generated.

EASY
Science>Chemistry>Combustion and Flame>Combustion
Which of the following variety of coal contains the highest percentage of carbon? 
MEDIUM
Science>Chemistry>Combustion and Flame>Combustion
Explain the working of a solar water heater with the help of a labelled diagram.
EASY
Science>Chemistry>Combustion and Flame>Combustion
Nowadays bio-diesel is used in transportation vehicles as an alternate to diesel. Write two advantages of this measure.
EASY
Science>Chemistry>Combustion and Flame>Combustion

Plane mirror reflector is used inside the solar cooker box. Explain why.