NaOH is prepared by the

A solution of NaOH is prepared by dissolving 1.5 g of the base in 500 mL of water. Calculate the pH of the solution.

The process by which hydrogen is prepared by the reaction of silicon, iron alloy and NaOH is-

When NaOH is prepared in Castner-Kellner cell,the gas evolved at the anode is

The following are the statements regarding NaOH i) It is prepared by Castner-Kelner process ii) The cathode in the outer compartments in mercury cathode method is Hg