A white crystalline salt [A] reacts with dilute HCl to liberate a suffocatig gas [B] and also forms a yellow precipitate. The gas [B] turns potassium dichromatic acidified with dilute H_(2)SO_(4) to a green coloured solution [C]. The compound A, B and C are respectively

A white crystalline salt [A] reacts with dilute HCl to liberate a suff

1.	A white crystalline salt [A] reacts with dilute HCl to liberate a suffocatig gas [B] and also forms a yellow precipitate. The gas [B] turns potassium dichromatic acidified with dilute H_(2)SO_(4) to a green coloured solution [C]. The compound A, B and C are respectively
Answer» `Na_(2)SO_(3), SO_(2), Cr_(2)(SO_(4))_(3)` `Na_(2)S_(2)O_(3), SO_(2), Cr_(2)(SO_(4))_(3)` `Na_(2)S, SO_(2), Cr_(2)(SO_(4))_(3)` `Na_(2)SO_(4), SO_(2), Cr_(2)(SO_(4))_(3)` Solution :It is the correct answer . `UNDERSET([A])(Na_(2) S_(2) O_(3)) + 2HCl RARR 2NaCl + underset([B])underset(("Yellow"))(SO_(2))+ S + H_(2)O` `K_(2)Cr_(2)O_(7) + H_(2)SO_(4) + 3SO_(2) rarr K_(2)SO_(4) + underset([C])underset(("Green"))(Cr_(2) (SO_(4))_(3)) + H_(2)O`