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Which of the following reagent(s) can sh...

Which of the following reagent(s) can show colour change when `SO_(2)` gas is passed through it?

A

`SO_(2)(g)+1//2O_(2)(g) Leftrightarrow SO_(3)(g)`

B

`N_(2)(g)+3H_(2) (g) Leftrightarrow 2NH_(3) (g)`

C

`2HI (g) Leftrightarrow H_(2)(g)+I_(2)(g)`

D

`"C(graphite)"+CO_(2) (g) Leftrightarrow 2CO(g)`

Text Solution

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The correct Answer is:
B, C, D
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