12. Which one of the following substances does not exist in theindicated solid type? A.graphite–covalent crystals B.Na–metalliccrystals C.SiO2–molecular crystals D.NaCl–ionic crystalsE.diamond–covalent crystal (Please explain how to dothis sort of problem)

Answer rating: 100% (QA)

Answer is C SiO2 Explanation SiO2 is network crystalline so... View the full answer