Which of the following provides a surface area where the exchange of gases takes place? निम्नलिखित में से कौन एक सतह उपलब्ध कराती है जिससे गैसों का विनिमय होता है?
Assertion : For drying H2S, Conc. H2SO4 cannot be used.
Reason: Moist H2S is oxidized by Conc.H2SO4
The correct statement with regard to H+2 & H−2 is