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प्रश्न
Answer the following question
What impurity is present in black diamond?
उत्तर
Black diamonds have copper oxide present in them as impurity.
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संबंधित प्रश्न
Fill in the blank.
The tendency of an element to exist in two or more forms but in the same physical state is called ................
Choose the correct alternative.
Graphite is not found in
Write three differences between graphite and diamond.
Name the following:
An amorphous form of carbon that contains about 98% carbon.
How is wood charcoal made locally? What other substances are formed in the process.
Give two uses for the following:
bone charcoal
Give balanced equations for the following chemical reactions:
(a) wood charcoal and cone, nitric acid
(b) coke and steam
(c) wood charcoal and lead monoxide.
What happens when a soda water bottle is opened ?
State one use of each of the following:
Diamond, Graphite, Coke, Bone charcoal
‘Wood charcoal – an amorphous aliotrope of carbon reduces heated metallic oxides to metals.’ Give a balanced equation to support the statement.
