Carbon and its compounds

How many bonds will a C atom form?

• 1

• 2

• 3

• 4

How many carbons are in the longest chain?

• 5
• 3
• 1
• 6

Tags

NGSS.HS-PS1-2

What structure is shown in the diagram?

• Diamond
• Graphite

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-3

Which has the formula C₆₀?

• graphite
• diamond
• fullerene
• none of these

Which is used as a cutting tool and in jewelry?

• graphite
• diamond
• fullerene
• none of these

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 in structure
• Atoms in different arrangement and different physical form

Which of the following is true about C₆₀ ?

• Each carbon bonded covalently to 3 other carbon atoms in a hexagonal ball like structure
• Each carbon bonded covelently to 4 other carbon atoms in layers
• a giant lattice structure
• pentagonal in shape

Carbon is arranged in what shape to make diamond?

• Triangle

• Hexagon

• Octahedron

• Tetrahedron

Which of the following statements about graphite and diamond is true?

• They have the same crystal structure

• They have the same degree of hardness

• They have the same electrical conductivity

• They can undergo the same chemical reactions

From which of the following substance pencil lead is formed?

• Charcoal

• Wood

• Lead

• Graphite