Question:
Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphite -
Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphite -
Updated On: Apr 8, 2024
- has molecules of variable molecular masses like polymers
- has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interplate bonds.
- is a non-crystalline substance.
- is an allotropic form of carbon.
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The Correct Option is B
Solution and Explanation
Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphite has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interplate bonds.
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Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
P block elements consist of:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family