ALLOTROPES OF CARBON

Which is the most hardest

• Diamond

• 1.5 TRILLION!!

• fullerene

• graphite

Tick the statement(s) that are true about Amorphous Carbon.

• Amorphous carbon can be used to extinguish fires

• Amorphous carbon is also known as coal

• Amorphous carbon are products of pyrolysis

• Amorphous carbon does not have a crystalline structure

Write the full name of Bucky Balls

Which has a every carbon atom covalently bonded to three others?

• graphite

• diamond

• fullerene

• graphene

Which statement(s) below about graphite is correct? Tick all that apply.

• Graphite is soluble in water

• It has a low melting point

• Graphite has strong covalent bonds

• Graphite is opaque

Define the term allotropes

• Atoms with same proton number but different number of neutrons

• Atoms with same proton number but different mass number

• Atoms in different arrangement but same structure

• Atoms in different arrangement and different structural form

Which is used in pencils ?

• graphite
• diamond
• fullerene
• none of these

Which has the formula C₆₀?

• graphite
• diamond
• fullerene
• none of these

Which is extremely hard?

• graphite
• diamond
• fullerene
• none of these

What kind of bonding does atoms in graphite has?

• Covalent bonding with all atoms
• Each carbon, bonded covalently to 3 other carbon atoms in a 3D lattice
• Each carbon, bonded covalently to 4 other carbon atoms.
• Each carbon, bonded covalently to 3 other carbon atom in 2D held by intermolecular