Tap water conducts electricity whereas distilled water does not. Why ?

tap water conduct electricity where as distilled water does not why?

Give suitable reasons for the following statements: Rain water conducts electricity but distilled water does not.

State reasons for the following : (a) Tap water conducts electricity, distilled water does not. (b) Dry hydrogen chloride does not turn blue litmus to red where as dilute hydrochloric acid does. (c ) During summer season, a milk man usually adds a very small amount of baking soda to fresh milk (d) For dilution of acid, acid is added into water and not water into acid. (e) Ammonia is a base but does not contain hydroxyl group.

water can conduct electricity.

Why does distilled water not conduct electricity whereas rain water does ?