General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 12)
12.
The hardest substance available on earth is
Discussion:
79 comments Page 4 of 8.
Ajay sihag said:
1 decade ago
There is no free lone pair or electron b/w carbon and carbon and has four covalent bonds but graphite is softest allotrope of carbon.
A.Sathesh karthick said:
9 years ago
Diamonds can be cut only through diamond. But for other metals they are cut through other metal. This shows the strongest in world.
Vaishnavi said:
1 decade ago
Diamond is brilliant and it has a specific arrangement of atoms in it. Since it is the hardest and used to cut metals and glass.
Hemant Garg(Dhuri) said:
1 decade ago
In diomond there are covalent bonds between carbon-carbon atoms and these bonds are very strong and almost impossible to break.
Hansraj sharma said:
1 decade ago
Hardest substance on earth is diamond because it is a allotrope of carbon in which the carbon atoms bonded in a 3d structure.
Adu said:
9 years ago
Awesome buddies you all are so intelligence.
But, the element and substance differs so the textual content is wrong.
But, the element and substance differs so the textual content is wrong.
Chandan said:
10 years ago
There should be another option that wurtzite boron Nitride, world hardest material is boron Nitride that mention.
Raviranjan said:
1 decade ago
There are strong chemical bonding b/w their chemicals and its unbreakable due to this its a strong among them.
Shahana said:
9 years ago
Gold can melt, iron can melt, platinum can melt but diamond can't melt.
Diamond can cut only using Diamond.
Diamond can cut only using Diamond.
ROBERT DOWNEY JR. said:
1 decade ago
Diamond can only be heated up to 200 degrees but for gold etc only does heat up less than 200 degree.
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