Chemistry
Grade-8
Easy
Question
A scientist try to put pressure on all the three carbon allotropes to check which allotrope is weakest and which one is strongest. Choose the correct option
- Graphite < Diamond < Fullerene
- Diamond < fullerene < Graphite
- Fullerene < Graphite < Diamond
- Graphite < Fullerene < Diamond
Hint:
The strongest is used to make jewelry and the weakest is used to make lead of pencil.
The correct answer is: Graphite < Fullerene < Diamond
The correct option is d)Graphite < Fullerene < Diamond.
Graphite is the weakest followed by fullerene and diamond. Diamond is harder than graphite because the carbon atoms in diamond form four covalent bonds in the form of a tetrahedral structure and fullurene has intermediate strength i.e less than diamond more than graphite.
Related Questions to study
Chemistry
Which allotrope has weak forces between its layers?
Which allotrope has weak forces between its layers?
ChemistryGrade-8
Chemistry
Which of the following is incorrect about diamond?
i. It is soft in nature.
ii. It has high density.
iii. It has high melting point.
iv. It is soluble in all solvents.
Which of the following is incorrect about diamond?
i. It is soft in nature.
ii. It has high density.
iii. It has high melting point.
iv. It is soluble in all solvents.
ChemistryGrade-8
Chemistry
In which of the following carbon atom is covalently linked to other four carbon atoms?
In which of the following carbon atom is covalently linked to other four carbon atoms?
ChemistryGrade-8
Chemistry
Which allotrope has a free electron between its layers that give rise to electrical conductivity?
Which allotrope has a free electron between its layers that give rise to electrical conductivity?
ChemistryGrade-8
Chemistry
Which allotrope shows photochromic effect?
Which allotrope shows photochromic effect?
ChemistryGrade-8
Chemistry
Fullerene, Diamond and graphite come in the category of:
Fullerene, Diamond and graphite come in the category of:
ChemistryGrade-8
Chemistry
________ is used in electrodes.
________ is used in electrodes.
ChemistryGrade-8
Chemistry
The valency for the carbon is ______.
The valency for the carbon is ______.
ChemistryGrade-8
Chemistry
The allotrope of carbon used in making jewellery is _____.
The allotrope of carbon used in making jewellery is _____.
ChemistryGrade-8
Chemistry
Select the allotrope used in pencils.
Select the allotrope used in pencils.
ChemistryGrade-8
Chemistry
The layers of the graphite which force acts between them?
The layers of the graphite which force acts between them?
ChemistryGrade-8
Chemistry
Which of the following contain carbon atoms?
Which of the following contain carbon atoms?
ChemistryGrade-8
Chemistry
Select the correct formula for fullerene.
Select the correct formula for fullerene.
ChemistryGrade-8
Chemistry
Which is the hardest allotrope of carbon?
Which is the hardest allotrope of carbon?
ChemistryGrade-8
Chemistry
The melting point of sodium bicarbonate is:
The melting point of sodium bicarbonate is:
ChemistryGrade-8
