The solid which is hardest of all types is _?
Correct answer: A. Covalent solids
- A. Covalent solids
- B. Molecular solids
- C. Ionic solids
- D. Metallic solids
Explanation
Covalent solids are those solids in which constituents particles are atoms that are interlinked through the covalent bonds. The covalent bond arrangement of atoms extends three-dimensionally in the crystal lattice resulting in the formation of a giant interlocking structure called a network. Like, Diamond, Graphite, Silicon carbide, etc. So, the type of solid that tends to be the hardest are covalent solids.
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Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
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