Question

Pure water does not conduct electricity. However, when a small amount of acid, base
or salt is added, it starts conducting. Why?​

Answer 1

Answer:

pure water or fresh water or distilled water does not contain impurities.. So therefore it doesn't conduct electricity.Any impurities, like salts, in the water enable it to conduct electricity. 

Answer 2

Because, the acid, base and salt are the good conductor of electricity...