The negatively charged ions are formed during dissociation are called :
anions
Explanation of incorrect option (A) :
1. Cations are positively charged ions. They are formed when a metal loses its electrons.
2. They lose one or more than one electron and do not lose any protons.
3. Therefore, they possess a net positive charge. Some examples of cations are Calcium (Ca2+), Potassium (K+), and hydrogen (H+).
Hence, option (A) is incorrect.
Explanation of incorrect option (C):
1. Ion can be defined as a chemical species which holds a positive or negative charge of some magnitude.
2. The ions that contain a greater number of protons than electrons are known to hold a net positive charge. These ions are commonly referred to as cations.
3. On the other hand, the ions that contain a greater number of electrons than protons are known to hold a net negative charge. These ions are commonly known as anions.
Hence, option (C) is incorrect.
Explanation of correct option (B):
1. Anions are negatively charged ions. They are formed when non-metal gains the electrons.
2. They gain one or more than one electron and do not lose any protons.
3. Therefore, they possess a net negative charge. Some examples of anions are Iodide (I–), chloride (Cl–), and hydroxide (OH–).
Hence, option (B) is correct.