EASY
Earn 100

What is peat coal?

Important Questions on Ecology

EASY
Sugar charcoal is the purest amorphous form of carbon.
MEDIUM
________ is the coal of superior quality.
MEDIUM
Why is wood charcoal used in water filters and gas masks?
EASY

Give two uses of animal charcoal.

EASY

Give reasons for the following.
Wood charcoal is a better fuel than wood.

MEDIUM
State the properties of soft coal.
MEDIUM
Write the uses of sugar charcoal.
EASY
Charcoal is a good adsorbent.
MEDIUM
Anthracite is known as the highest grade coal. Give reason.
MEDIUM
Wood charcoal is an important constituent of gun powder.
MEDIUM

Give two uses of Lamp black.

EASY
Give reasons for the following.
Charcoal is used as a decolorizing agent in the sugar industry.
EASY

Write the quadrants in which the following points lie:

-4,7

EASY
What is lamp black?
MEDIUM
How is wood charcoal made locally? What other substances are formed in the process.
EASY

Write two physical properties of charcoal.

MEDIUM
Activated charcoal is a good conductor of electricity.
EASY
Coal is crystalline form of carbon.
EASY

How can you show that wood charcoal adsorbs colour from some substances?