General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 19)
19.
In which of the following activities silicon carbide is used?
Discussion:
42 comments Page 1 of 5.
Sachikanta said:
6 years ago
Silicon carbide is man-made. So, it is a very hard substance.
Sourav said:
6 years ago
Boron carbide is the hardest material in earth after diamond.
Prashanth said:
6 years ago
Diamond is the hardest material but it is used for cutting non-ferrous materials only if we use for ferrous materials diffusion wear takes place.
Subhas dutta said:
6 years ago
I think boron carbide is the hardest material.
Sanket said:
7 years ago
Diamond is hard than silicon carbide.
Sanjay said:
7 years ago
So, what is the hardest thing in the world? Diamond or silicon carbide?
Raju said:
7 years ago
C should be the correct answer. I agree with the given answer.
M.A. Ansari said:
8 years ago
Silicon carbide is the man made hardest substance.
Narashima purohit said:
8 years ago
5 hardest substances on earth(naturally occurring).
1. Diamond
2 .carborandum
3. topaz
4. quartz
5. orthoclase feldspar
1. Diamond
2 .carborandum
3. topaz
4. quartz
5. orthoclase feldspar
Shailesh kumar said:
8 years ago
Yes, absolutely right @Pooja.
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