Choose the correct statement:
Correct answer: A. Diamond is the hardest and graphite is softest
- A. Diamond is the hardest and graphite is softest
- B. Graphite is the hardest while lamp black is softest
- C. Coal is the hardest and coke is softest
- D. Diamond is the hardest and coke is softest
Explanation
Graphite is soft because it has weak intermolecular forces between its layers. Diamond is hard due to its giant covalent lattice and it has many strong covalent bonds.
This question appeared on the NUMS 2014 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Crystalline Solids
Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
Practise Solids
357 free Solids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Crystalline Solids questions
Which statement about glass is incorrect?
Which of the following systems contain delocalized electrons? 1 cyclohexene 2 graphite 3 sodium
Hexagonal close packing has the arrangement pattern of particles as:
Which of the following is light as a feather and strong as iron?
Nature of diamond as solid is:
Which one ol the following is as light as a feather and as strong as iron?