Question

An element 'A' is the major constituent of haemoglobin, 'A' reacts with dilute sulphuric acid and liberates a gas 'B'. The gas 'B' is
1) CO2
2) 02
3)H₂
4) H2S​

Answer 1

Answer:

Hydrogen disulphate gas

Answer 2

Fe + H2SO4 —-> FeSO4 + H2
So hydrogen gas is evolved.

Hope this is helpful.