MHT CET Chemistry Question (2026) — Solution

Step-by-step solution

Henry's law is applicable only to those gases which do not react chemically with the solvent and do not undergo dissociation or association in the solution. Gases like NH _3 and CO _2 react with water to form NH _4 OH and H _2 CO _3 respectively. NH _3 + H _2 O NH _4^+ + OH ^- CO _2 + H _2 O H _2 CO _3 H ^+ + HCO _3^- Due to their chemical reaction with the solvent, their solubility is exceptionally high and they do not obey Henry's law. Gases like O _2, N _2, and CH _4 do not react with water and thus obey Henry's law. Answer: NH _3 and CO _2