Carbon is a non-metallic element that is essential for all organic life. It has an atomic number of 6 and exists in several allotropes including graphite, diamond, and buckyballs. Carbon is the backbone of organic molecules like DNA, proteins, and carbohydrates. It also plays a critical role in the carbon cycle by which carbon is exchanged between living organisms. The document then discusses the physical and chemical properties of carbon and its allotropes in more detail.

1. Hello bachho
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2. Carbon
Carbon is a chemical element with atomic symbol C and atomic number
6. It is a non-metallic element that occurs in all organic life and is the
basis of organic chemistry. Carbon has several allotropes, such as
graphite, diamond, and amorphous carbon. It has many uses such as in
steelmaking, carbon dating, and as a fuel source.
Carbon is essential to life on Earth as it is the backbone of organic
molecules, including DNA, proteins, and carbohydrates. It also plays a
critical role in the carbon cycle, which is the process by which carbon is
exchanged between living organisms.
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3. PHYSICAL PROPERTIES
Symbol C
Atomic Number 6
Atomic mass 12 amu
Valency 4
Electronic configuration 1s2 2s2 2p2
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4. Allotropy and Polymorphism
I. What is allotropy?
II. What is allotropes?
III. Will both physical and chemical properties coincides , if an
element shows allotropy?
IV. Will the compounds formed have equal mass if they are
formed from different allotropes of same element?
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5. Allotropic modification
of carbon
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• Identify Graphite , Diamond &
fullerene Bucky Ball.
• Out of 3 allotropes how
many of them are found in 2d
and 3d respectively.

6. Diamond
•What type of structures do
diamond resembles?
•Thermal conductivity of diamond?
•Are all the known diamonds are
bad conductors of electricity?
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7. Graphite
• Graphite shape and network
• Are graphite good conductor of electricity?
• Diamonds is the hardest substance known
while graphite is very soft although made
up of same element why?
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8. Fullerenes
•Fullerenes shape , network
and its discovery
•Uses of fullerenes
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9. MCQS
• Latest discovered crystalline form of carbon is
I. charcoal
ii. fullerenes
iii. graphite
iv. diamond
• Carbon monoxide is an
• I. Neutral oxide
• ii. Acidic oxide
• iii. Basic oxide
• iv. Superoxide
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10. • Which is the second hardest substance ever found?
I .Sodium peroxoborate
ii .Borazon
iii .Uranium
iv.Na2[B2(O2)2(OH)4].6H2O
• Who discovered graphite?
I. Harold W.Kroto
ii. E .Smalley
iii. Albert Einstein
iv .Both i and ii
• Thermal conductivity of diamond is ……..times more than that of copper
I.3
ii.4
iii.5
iv.6
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11. Thank you
Only Exercise i did this year is running out
of money and running after her.
Credit : Tiraj Basnet
Hello guys.