Plaster of Paris is prepared by heating one of the following to a temperature of 100°C. This is:

The formula of baking soda is:

Which of the following is treated with chlorine to obtain bleaching powder?

A salt whose aqueous solution will have a pH of more than 7 will be:

A salt is dissolved in water and the pH of this salt solution is measured with a universal indicator paper. If the pH of solution is less than 7, the salt is most likely to be: