To neutralise 20 ml of M/10 sodium hydroxide, the volume of M/20 hydrochloric acid required is

To neutralise 20 ml of M/10 NaOH the volume of M/20 HCl needed is :

Excess of carbon dioxide is passed through 50 mL of 0.5 M calcium hydroxide solution. After the completion of the reaction, the solution was evaporated to dryness. The solid calcium carbonate was completely neutralised with 0.1 N hydrochloric acid. The volume of hydrochloric acid required is

Excess of carbon dioxide is passed through 50 mL of 0.5 M calcium hydroxide solution. After the completion of the reaction, the solution was evaporated to dryness. The solid calcium carbonate was completely neutralised with 0.1 N hydrochloric acid. The volume of hydrochloric acid required is (Atomic mass of calcium = 40)

Mark'T' if the statement is true and 'F' if the false Sodium hydroxide and hydrochloric acid neutralise each other and from salt and water.