Question

Which is an example of a binary compound?

a. acetic compound
b. nitric compound
c. potassium compound
d. potassium oxide

Answer 1

A is potassium

Step-by-step explanation:

This is evident because there are 19 protons in the nucleus. This means that 19 is the atomic number. According to the periodic table, the 19th element is potassium

Answer 2

A binary compound is a substance that contains exactly two elements. The correct answer is potassium oxide, which contains only potassium and oxygen.
The answer is D.