EASY
Earn 100

Give examples of two solid fuels.

Important Questions on Carbon and Its Compound

EASY
What will be the marking on a cooking gas cylinder that has a maturity period upto March 2020?
EASY
Write one example each for fossil fuels in a solid and liquid state.
EASY
Which fossil fuel produces ammonia when distilled in the absence of air?
MEDIUM

Mention one use of biogas.

MEDIUM
A body of mass 10 kg is kept at a height of 5 m. It is allowed to fall and reach the ground. What is the total mechanical energy possessed by the body at the height of 2 m assuming it is a frictionless medium? (use g=10 m s-2)
EASY
Write any two precautions to be taken to avoid accidents due to LPG leakage.
EASY
Write down the process of evolution of fossil fuels on Earth.
EASY
Write any two products that are obtained when coal is distilled in the absence of air.
MEDIUM
A body of mass 10 kg is kept at a height of 5 m. It is allowed to fall and reach the ground. What is the kinetic energy possessed by the body just before hitting the ground? Take g=10 m s-2
EASY
A hydrocarbon which is a greenhouse gas is:
MEDIUM
Write at least five characteristics of a good fuel.
MEDIUM
What is fuel? State the characteristics of a good fuel.
EASY
Write the full form of LPG and CNG.
HARD
Why wick is not used in gaseous burners?
EASY
Give two examples of liquid fuels.
MEDIUM
What are the qualities of a good fuel? List these qualities.
EASY
Give two examples of solid fuels.
EASY
Give two examples of gaseous fuels.
MEDIUM
Name one solid, one liquid and one gas which burn by producing a flame.
EASY
Any substance which is easily available and burns in air at a moderate rate, producing large amount of heat energy, without leaving behind undesirable residue, is called :