ANS:C - both H⁺ and OH^- ions are present in very small but equal concentration.

In a neutral solution, the concentration of hydrogen ions (𝐻+H+) and hydroxide ions (𝑂𝐻−OH−) are equal. However, they are present in very small concentrations, and their product, 𝐻+×𝑂𝐻−H+×OH−, is equal to the dissociation constant of water (𝐾𝑤Kw​) which is 1×10−141×10−14 at 25°C. Therefore, the correct statement is: (c) both 𝐻+H+ and 𝑂𝐻−OH− ions are present in very small but equal concentration.