Question

When f2 gas is passed through a mineral acid X, a greenish yellow gas Y is formed. Which on treating with slaked lime forms Z.When Red litmus is kept in contact with Z it changes into
A.Blue B.No change C.White D.none of above

Answer 1

Answer:

The Green gas is Chlorine gas.

Hence Z is CaCl2.

So The litmus turns Blue as CaCl2 is Basic Nature.

So answer A is correct.

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