Question

Select the correct answer. Which of the following tests could be safely used to distinguish a strong base from a weak base? A. taste B. touch C. litmus paper D. electrical conductivity

Answer 1

Answer: Option (D) is the correct answer.

Explanation:

Bases are the substances that release hydroxide ions when dissolved in water.

A strong base will dissociate completely in water and give more number of hydroxide ions $(OH^{-})$. Whereas a weak base will slightly dissolve to give hydroxide ions $(OH^{-})$ in water.

So, a strong base will have high electrical conductivity and a weak base will have low electrical conductivity.

Since, both are bases (strong base and weak base) therefore, both of them will have bitter taste, slippery texture and they will turn red litmus into blue.

Hence, we can conclude that electrical conductivity tests could be safely used to distinguish a strong base from a weak base.