Question

A metal oxide P reacts with water and forms a metal hydroxide Q. On the other hand, a gas R is obtained

at a anode during the electrolysis of brine . Now, when R is passed over dry Q it gives compound S

which is used for disinfecting drinking water.

a) Identify P,Q,R,S. Write the chemical equations involved.

b) Name the process used in the formation of R and write two uses of R.​

Answer 1

Vectors are those organisms that carry a pathogen from the host to a recipient. Mosquito, rats and mice are some of the common vectors that carry infectious diseases.