Question : The gas dissolved in water that makes it basic is:
Option 1: Ammonia
Option 2: Sulphur Dioxide
Option 3: Hydrogen
Option 4: Carbon Dioxide
Correct Answer: Ammonia
Solution : The correct option is Ammonia .
Ammonium hydroxide (NH 4 OH) is created when ammonia gas dissolves in water. The strong base in this solution, along with the gas, will cause the solution to become alkaline. A negative and a positive ion are created when gas dissolves in water and ionizes. A colourless gas is soluble in water and polar due to hydrogen bonding with water.
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