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Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphite
  • a)
    is an allotropic form of diamond 
  • b)
    h as molecules of var iable molecular masses like polymers
  • c)
    has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interplate bonds
  • d)
    is a non-crystalline substance
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Graphite is a soft solid lubricant extremely difficult to melt. The re...
In graphite, carbon is sp2 hybridized. Each carbon is thus linked to three other carbon atoms forming hexagonal rings. Since only three electrons of each carbon are used in making hexagonal ring, fourth electron of each carbon is free to move. This makes graphite a good conductors of heat and electricity.
Further graphite has a two dimensional sheet like structure. These various sheets are held together by weak van der Waal’s force of attraction. due to these weak forces of attraction, one layer can slip over the other. This makes graphite soft and a good lubricating agent.
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Most Upvoted Answer
Graphite is a soft solid lubricant extremely difficult to melt. The re...
Explanation:

Structure of Graphite:
- Graphite has a unique structure where carbon atoms are arranged in large, flat plates or layers.
- These layers consist of rings of strongly bound carbon atoms.

Interlayer Bonds:
- The carbon atoms within each layer are strongly bonded to each other.
- However, the interlayer bonds between the layers are relatively weak compared to the intra-layer bonds.

Effect on Melting Point:
- The weak interlayer bonds in graphite result in a low melting point.
- When graphite is heated, the interlayer bonds are easily broken, allowing the layers to slide over each other.
- This sliding motion results in the lubricating properties of graphite.

Comparison with Diamond:
- In contrast to graphite, diamond has a three-dimensional network structure with strong covalent bonds in all directions.
- This structure gives diamond its hardness and high melting point.
Therefore, the unique arrangement of carbon atoms in large plates with weak interlayer bonds is the reason for graphite's anomalous behavior of being a soft solid lubricant that is extremely difficult to melt.
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Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphitea)is an allotropic form of diamondb)h as molecules of var iable molecular masses like polymersc)has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interplate bondsd)is a non-crystalline substanceCorrect answer is option 'C'. Can you explain this answer?
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Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphitea)is an allotropic form of diamondb)h as molecules of var iable molecular masses like polymersc)has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interplate bondsd)is a non-crystalline substanceCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphitea)is an allotropic form of diamondb)h as molecules of var iable molecular masses like polymersc)has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interplate bondsd)is a non-crystalline substanceCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphitea)is an allotropic form of diamondb)h as molecules of var iable molecular masses like polymersc)has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interplate bondsd)is a non-crystalline substanceCorrect answer is option 'C'. Can you explain this answer?.
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