Question

A non-metal 'A' is an important constituent of our food and forms two oxides 'B' and 'C'...Oxide 'B' is toxic whereas 'C' causes Global Warming.

(a) Identify A, B and C .

(b) To which group of the periodic table does 'A' belong ?

Answer 1

A refers to Carbon which is an important constituent of our food and its forms B which is carbon monoxide which is toxic and further it forms C which is Co2 responsible for global warming.
Carbon belongs to second period group 14.

Answer 2

1. The nonmetal A is carbon which is major constituent of our food.

2. Oxide B is carbon Monoxide which is toxic

3. Oxide C is Carbon dioxide which causes global warming