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प्रश्न
Name the following:
An amorphous allotrope of carbon which floats on water.
उत्तर
Wood charcoal.
APPEARS IN
संबंधित प्रश्न
Fill in the blank.
............. is the hardest substance that occurs naturally.
Write true or false
Graphite is the purest form of carbon.
Answer the following question
Explain the softness of graphite with reference to its structure.
Write three differences between graphite and diamond.
Fill in the blank
Coal is a ............. form of carbon.
What is destructive distillation? What are the products formed due to the destructive distillation of coal?
Name the products formed when:
diamond is burnt in air at 900°C.
Tick the most appropriate answer.
Which of the following is an amorphous form of carbon?
a. graphite
b. fullerenes
b. diamond
d. coal
TRUE \ FALSE
Pure diamond can occur in several colours.
State one use of each of the following:
Diamond, Graphite, Coke, Bone charcoal
