Madhya Pradesh Police Exam Model Paper 5

The correct answer is Positive.

• The electrically charged atoms or group of atoms are called ions.
• Ions can be negatively or positively charged.
• A positively charged ion is called ‘cation’.
  • Cations are formed when one or more electrons are ejected from the atom.
  • Examples of cations are ${\mathrm{Na}}^{+},{\mathrm{Mg}}^{2+},{\mathrm{Al}}^{3+}$ etc.
• ${\mathrm{H}}^{+}$ and ${\mathrm{NH}}_4^{+}$ cations are made of non-metals.