General Knowledge - General Science - Discussion

19. 

In which of the following activities silicon carbide is used?

[A]. Making cement and glass
[B]. Disinfecting water of ponds
[C]. cutting very hard substances
[D]. Making casts for statues

Answer: Option C

Explanation:

No answer description available for this question.

Sonal said: (Mar 8, 2011)  
Silicon carbide is so much hardest substance.

Abhirami said: (Aug 30, 2011)  
Silicon carbide is the hardest substance so only its used for cutting very hard substances.

Vinesh said: (Nov 3, 2011)  
I think Diamond is the hrdest substance on Earth and hence it is used to cut ver hard materials. can anyone please answer to my question?

Harinder said: (Feb 10, 2012)  
Diamond is the naturally occuring substance, but silicon carbide is man made.

Pooja Srivastava said: (Apr 21, 2012)  
Diamond is the naturally occurring substance it is found rarely and costly but silicon carbide is man mad substance so mostly try to use the silicon carbide is used for cutting very hard substances.

Lokesh said: (Jan 26, 2013)  
Is there any other hardest material other than diamond which is occurring naturally?

Annu said: (Jan 29, 2013)  
Silicon carbide is really very hard so it is use to cut hard substances.

Manju H said: (Aug 11, 2013)  
Silicon carbide is a abrasive particles because this is used for grinding wheels and other cutting purposes.

Roshan said: (Aug 26, 2013)  
Is there right the hardest material diamond, to shape diamond tool used made up of silicon carbide? Please reply.

Kristel Jade said: (Sep 22, 2013)  
If diamond is the hardest naturally occurring substance, then what is used to cut it? Is it silicon carbide? Hope you answer my question soon. :).

Vinay said: (Feb 2, 2014)  
There is very confusion between silica carbide and diamond. Can anybody help.

Raju said: (Feb 19, 2014)  
Silicon carbide is used as surface finishing material after complete the job and its made up of silicon, carbon.

Santosh Kumar Yadav said: (Feb 23, 2014)  
Sure diamond is most hard substance but the cost and availability limit the use of diamond and therefore silicon carbide is used to the cut the very hard metal.

Kamini Chanchal said: (Feb 27, 2014)  
Silicon is cheaper than diamond thats it is used.

Qummar Waheed said: (Mar 16, 2014)  
Silicon carbide, also known as carborundum, is a compound of silicon and carbon with chemical formula SiC. It occurs in nature as the extremely rare mineral moissanite. Silicon carbide powder has been mass-produced since 1893 for use as an abrasive.

Aniket said: (May 26, 2014)  
Silicon is less in cost that of diamond and to much hard to cut hard materials. We use diamonds also as cutting tool on cutting edge for more harder materials.

Atanu said: (Jul 2, 2014)  
Silicon carbide is most commonly used in Grinding Plates.

Ankush Yadav said: (Jul 21, 2014)  
Slicon corbide also known as corborudum is a compound silicon SIC silicon is cheaper than diamond that its used.

Rahul Soni said: (Nov 1, 2014)  
All of you are right that diamond is the hardest material on the earth. But in question he is asking about only Silicon carbide.

Ramesh said: (Nov 10, 2014)  
Friends, diamond is the hardest natural made substance.

But the silicone carbide is man made that's all. But the world's hardest material is "Lonsdaleite".

Srijita Tripathi said: (Mar 6, 2015)  
Firstly decide that which is hardest substance. I think it is the teeth of an animal. I forgot the name found in the sea of Western Europe.

John said: (Apr 20, 2015)  
Which substance is used for making bullet proof jackets? Is it SIC?

Jana said: (Jul 27, 2015)  
The grinding wheel used for machining hard materials is made of silicon carbide.

Saurabh said: (Sep 1, 2015)  
Kevlar (a synthetic fiber of high tensile strength used especially as a reinforcing agent in the manufacture of tyres and other rubber products) is used to making bullet proof jackets.

Sashibhusan Mohaparea said: (Dec 6, 2015)  
Which is hardest between Silicon carbide and diamond ?

Sumit said: (May 4, 2016)  
I have a little confusion.

Diamond is the hardest substance and silicon carbide is also hard. Comparing these two which one is harder?

Vinay Kumar said: (Jun 24, 2016)  
Diamond is very hardest substance, it is cutting from the laser beam.

Gopal said: (Oct 1, 2016)  
We can observe silicon carbide in many workshops. Asnit is used as cutting tool to cut hard materials.

Ex:- lathe machines, milling machines etc.

Yashwanthsathya said: (Jan 16, 2017)  
After diamond, Silicon carbide is one of the hardest material Hence it is used as an Abrasive.

Shahrukh said: (Mar 8, 2017)  
Silican carbide is used to making grinder which is cutting tool or surface finishing tool. And it is the hardest substance.

Yuvraj Singh said: (Mar 23, 2017)  
Yes, it is true that diamond is the hardest substance known on the earth but may be silicon carbide is used to cut it.

Pooja said: (Jul 13, 2017)  
Question is not about the hardest substance. It's about the activity of the Silicon Carbide from the given option. Hope you all agree with my answer.

Shailesh Kumar said: (Aug 9, 2017)  
Yes, absolutely right @Pooja.

Narashima Purohit said: (Aug 16, 2017)  
5 hardest substances on earth(naturally occurring).

1. Diamond
2 .carborandum
3. topaz
4. quartz
5. orthoclase feldspar

M.A. Ansari said: (Jan 18, 2018)  
Silicon carbide is the man made hardest substance.

Raju said: (Aug 30, 2018)  
C should be the correct answer. I agree with the given answer.

Sanjay said: (Oct 6, 2018)  
So, what is the hardest thing in the world? Diamond or silicon carbide?

Sanket said: (Dec 24, 2018)  
Diamond is hard than silicon carbide.

Subhas Dutta said: (Apr 23, 2019)  
I think boron carbide is the hardest material.

Prashanth said: (May 10, 2019)  
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.

Sourav said: (May 22, 2019)  
Boron carbide is the hardest material in earth after diamond.

Sachikanta said: (Aug 3, 2019)  
Silicon carbide is man-made. So, it is a very hard substance.

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