Diamond is a/an_____substance.

Although diamond is a covalent substance, its melting point is very high-explain.

Assertion : Diamond is the hardest substance on the earth. Reason : It has high melting point.

Assertion : Diamond is the hardest substance on the earth. Reason : It has melting point.

Iodine and diamond are lustrous substances.

Iodine and diamond are lustrous substances. True/false

(a) What is diamond ? Of what substance is diamond made? (b) Describe the structure of diamond . Draw a simple diagram to show the arrangement of carbon atoms in diamond. (c ) Explain why , diamond has a high melting point (d) State any tow uses of diamond.

State whether the following statements are True or False ( If a statement is false, correct it and rewrite it): Iodine and diamond are lustrous substances.