In network of silica (SiO2) each silicon atom is surrounded by _____________ atoms of osygen?
Correct answer: A. 4
- A. 4
- B. 2
- C. 1
- D. 6
Explanation
In the silica network, each silicon atom forms four Si-O covalent bonds arranged tetrahedrally, so it is surrounded by 4 oxygen atoms. The likely mistake is choosing 2, by confusing the SiO2 formula ratio with the number of oxygen atoms directly bonded to each silicon.
Last updated
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.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A crystal is made up of _ ?
A crystalline solid differs from an amorphous solid in that a crystalline solid
A malleable solid is one which can be_________________?
A metal sulfate contains 9.87% of M. This sulfate is isomorphous with ZnSO4,.7H2O. Determine the atomic weight of the metal M.
A process used for the Concentration of Ore is________?