MEDIUM
Earn 100

It is a property of fullerene:

50% studentsanswered this correctly

Important Questions on Carbon: An important element

EASY
Which one is not an allotrope of carbon nanostructure?
MEDIUM
Which of the following is not an allotropic form of carbon-
EASY
A non-metal X exists in two different forms Y and Z. Y is the hardest natural substance, whereas Z is a good conductor of electricity. Identify X, Y, and Z.
MEDIUM
Which of the following pairs have layer lattice structure in solid-state chemistry
MEDIUM
Allotropy is a property shown by which class of substances, elements, compounds mixtures? Give one example of allotropes of carbon.
HARD
Write two points of difference in the structures of diamond and graphite.
HARD
Describe the structure of diamond. Draw a simple diagram to show the arrangement of carbon atoms in diamond.
EASY
One of the following is not an allotrope of carbon. This is:
MEDIUM
Name the black substance of pencil. Will the current flow through the electrical circuit when we use the sharpened ends of the pencil to complete the circuit?
EASY
State one use of diamond which depends on its 'extraordinary brilliance' and one use of graphite which depends on its being 'black and quite soft'.
MEDIUM
Give any two differences between the properties of diamond and graphite. What causes these differences?
HARD
Explain why, graphite can be used as a lubricant but diamond cannot.
MEDIUM
Why is graphite used for making dry cell electrodes but diamond is not?
MEDIUM
How can diamonds be made artificially? How do synthetic diamonds differ from natural ones?