Question

Some properties of substance X are listed.
● It conducts electricity when molten.
● It has a high melting point.
● It burns in oxygen and the product dissolves in water to give a solution with pH 11.
What is X?
A a covalent compound
B a macromolecule
C a metal
D an ionic compound

Answer 1

Answer:

D an ionic compound

Explanation:

as ionic compounds have all these characters

It conducts electricity when molten.

● It has a high melting point.

● It burns in oxygen and the product dissolves in water to give a solution with pH 11.