What type of ions have names ending in ‘ide’?

The correct answer is b only anions.

In chemistry, ions are charged particles that can be either positively charged (cations) or negatively charged (anions). The naming convention for ions typically follows certain rules. When we see a name ending in ‘ide’, it usually refers to an anion derived from a non-metal element. For example, chloride (Cl^–), oxide (O^2-), and sulfide (S^2-) are all examples of anions with names that end in ‘ide’.

In contrast, cations often have names that end with ‘ion’ or simply take the name of the element itself (like sodium for Na⁺). Therefore, the suffix ‘ide’ specifically indicates the presence of an anion, making options a, c, and d incorrect.