Chemistry Past Questions and Answers

The boiling of fat and aqueous caustic soda is referred to as

Which of the following pairs of substances will react further with oxygen to form a higher oxide?

In the preparation of oxygen by heating KCIO, in the presence of MnO\(_2\) only moderate heat is needed because the catalyst acts by \(_2\)

Methanoic acid mixes with water in all proportions and has about the same boiling point as water. Which of the following methods would you adopt to obtain pure water from a mixture of Sand, water and methanoic acid?

A quantity of electricity liberates 3.6g of Silver from its salt. What mass of aluminium Will be liberated from its salt by the same quantity of electricity? [Al = 27, Ag = 108].