Why does an aqueous solution of an acid conduct electricity?

29 What colour does phenolphthalein indicator turn when added to an alkali (such as sodium hydroxide)? 30 What do acids not show acidic behavior on the absence of water? 30 Why does distilled water not conduct electricity whereas rain water does? 31 (a) What happens when an acid reacts with a metal carbonate? Explain with the help of an example. Write chemical equation of the reaction involved.

Write equations of the reactions involved.