`SO_(2)` behaves with lime water similar to `CO_(2)`. Explain why ?

How does SO_2 react with lime water?

Why does CO_(2) turn lime water milky ?

CO_(2) is passed through lime water in excess .

Why does lime water turns milky on bubbling CO_(2) gas through it?

SO_(2) and CO_(2) both turn lime water (X) milky, SO_(2) also turns K_(2)Cr_(2)O_(7)//H^(+) (Y) green while O_(2) is soluble in pyrogallol (Z) turning it black. These gases are to be detected in order by using these reagents. The order is:

SO_(2) and CO_(2) both turn lime water (A) milky coloured , SO_(2) also turns K_(2)Cr_(2)O_(7)//H^(o+)(B) green while O_(2) is soluble in pyrogallol (C ) turning it black .These gases are to be detected in order by using these reagents .The order is