32) Graphite is used in manufacture of crucibles , where a small quantity of metals can be melted. It is also used as electrodes. Which of the following property of graphite is not exploited in these two given applications.
32) Graphite is used in manufacture of crucibles , where a small quantity of metals can be melted. It is also used as electrodes. Which of the following property of graphite is not exploited in these two given applications.
The correct option is B soft nature
Explanation of the correct option -
Crucibles are substances that are very useful for industrial purposes. They are made from graphite and function in a way that by taking a vessel and putting metal into it and this is then subjected to flame and this leads to melting of metal. Graphite is also used in making electrodes because graphite is a good conductor of electricity due to the presence of free electrons.
(B) Graphite as crucibles and electrodes are very hard in nature.
Explanation for the incorrect option -
(A)Graphite are highly resistant to chemical and heat and therefore does not corrode nor it breaks.
(C) Graphite has a high melting point hence it is used in chemical industries as it does not break when subjected to high temperature.
(D) Graphite is a good electrical conductor.
Hence option ‘B’ soft nature property of graphite is not exploited in these two given applications.
soft nature
Explanation of the correct option -
Crucibles are substances that are very useful for industrial purposes. They are made from graphite and function in a way that by taking a vessel and putting metal into it and this is then subjected to flame and this leads to melting of metal. Graphite is also used in making electrodes because graphite is a good conductor of electricity due to the presence of free electrons.
(B) Graphite as crucibles and electrodes are very hard in nature.
Explanation for the incorrect option -
(A)Graphite are highly resistant to chemical and heat and therefore does not corrode nor it breaks.
(C) Graphite has a high melting point hence it is used in chemical industries as it does not break when subjected to high temperature.
(D) Graphite is a good electrical conductor.
Hence option ‘B’ soft nature property of graphite is not exploited in these two given applications.
