Question

Out of the following substances, which is an example of a compound?

• A. $H_2$
• B. $B{r}_2$
• C. $C{O}_2$
• D. $Ag$

Answer 1

The correct option is C $C{O}_2$

Matter is anything that has mass, occupies space and can be perceived by our senses. Matter can be Pure substances (formed by one type of atoms) and Mixtures (Formed by combination of Pure substances in indefinite proportions).​

Based on the chemical combination, pure susbtances can be classified into:​

1. Element: composed of only one kind of atom​

2. Compound: Formed by the chemical combination of elements in fixed ratios​

​

Out of the given options, ​

$H_2$ = made up of H atoms​

$B{r}_2$ = made up of Br atoms​

$Ag$ = made up of Ag atoms​

$C{O}_2$ = made up of C and O atoms.​

So, $C{O}_2$ is a compound.​