Q. On how many parts of the land the farmers were forced to grow indigo, which later became the reason for Champaran satyagraha?
Q. किसानों को जमीन के कितने भाग पर नील की खेती करने के लिए मजबूर होना पड़ा था, जो बाद में चंपारण सत्याग्रह का कारण बना?
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