Which is a covalent compound?
A.Magnesium oxide forms small crystals, and the crystals are hard but brittle.
B. Methane is a gas at room temperature and does not conduct electricity.
C. Copper is metallic and can be hammered into different shapes.

Question

Which is a covalent compound?
 A.Magnesium oxide forms small crystals, and the crystals are hard but brittle.
B. Methane is a gas at room temperature and does not conduct electricity.
 C. Copper is metallic and can be hammered into different shapes.

anonymous · Answer

Covalent bond occurs between non-metals and it is about sharing of these. As a result, they are so sticked to each other that they cannot move in order to conduct electricity. Hence, answer is B.