A colourless gas with a pungent smell is evolved when dilute hydrochloric acid is added to a sample of a salt. The gas evolved could turn
a
acidified K\(_{2}\)Cr\(_{2}\)O\(_{7}\) solution colourless
b
acidified KMnO\(_{4}\) solution colourless
c
Fe(NO\(_{3}\))\(_{2}\) solution green
d
Pb(NO\(_{3}\))\(_{2}\) paper black
Explanation
Correct Option
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