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प्रश्न
Fill in the blank:
......... is the most inferior form of coal.
उत्तर
Peat is the most inferior form of coal.
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संबंधित प्रश्न
Answer the following question
What impurity is present in black diamond?
Choose the correct alternative
Destructive distillation of coal yields
Write ‘true’ or ‘false’ against the following statement:
Activated charcoal is a good conductor of electricity.
Name the following:
The purest form of amorphous carbon.
Tick the most appropriate answer.
Diamond and graphite are
a. metals.
b. organic compounds,
c. alkenes.
d. allotropes.
Tick the most appropriate answer.
Which form of carbon is a good conductor of electricity?
a. graphite
b. diamond
c. coke
d. amorphous carbon
Tick the most appropriate answer.
Fuel gases like water gas and producer gas are manufactured from
a. bone charcoal
b. wood charcoal
c. coke
d. none of these
TRUE \ FALSE
Pure diamond can occur in several colours.
Name the crystalline forms of carbon.
Define the term ‘allotropy’. Give a reason why carbon exhibits allotropy.
