Which of the following is correct statement for diamond?
Notes: Diamond is the hardest natural substance known on earth. Diamond is extremely hard and transparent. It doesn’t conduct electricity and has a higher melting point than Graphite. At room temperature, diamonds do not react with any chemical reagents including strong acids and bases.
Which of the following structure is diamond?
In a diamond, the carbon atoms are arranged tetrahedrally. Each carbon atom is attached to four other carbon atoms 1.544 x 10–10 meter away with a C-C-C bond angle of 109.5 degrees. It is a strong, rigid three-dimensional structure that results in an infinite network of atoms.
Which one of the following statements about diamond and graphite is not correct?
Graphite is a good conductor of electricity while diamond is not.
Which of the following statement is correct regarding diamond and graphite?
The correct option is D. Note: Structure of diamond is crystalline. In diamond each atom present in diamond makes four other covalent bonds with neighboring carbons. Graphite is a layered structure and each layer one carbon atom bonds with 3 other carbon atoms while 1 electron remains free to move between layers.