Question

An aqueous solution of sodium chloride is prepared in distilled water. The pH of this solution is :

An aqueous solution of a salt turns blue litmus to red. The salt could be the one obtained by the reaction of :

A chemical compound used in glass, soap and paper industries is

Write the name and formula of (1) an acidic salt and (2) a basic salt giving the name of the parent acid and parent base used to form the salt in each case.

Name and state in brief the process which is used to prepare sodium hydroxide from sodium chloride. In this process along with the main product two gases 'X' and 'Y' are also given off at the two electrodes. Name 'X' and 'Y' specifying the name of their respective electrode at which each gas is obtained. One of these gases when reacts with dry calcium hydroxide produces a compound 'Z' which is widely used in water treatment plants and textile industries. Name Z and write chemical equation for the reaction involved in its formation.