Answer this in english for class 10 icse

Here are the answers for question 4:

i) Gas Y is Hydrogen Chloride (HCl).

ii) This experiment demonstrates two properties of gas Y:

• It is highly soluble in water.
• It forms an acidic solution when dissolved in water.

iii) Another gas with a similar property that can be demonstrated similarly is Hydrogen Bromide (HBr) or Hydrogen Iodide (HI).