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নিচের কোনটি জারণ-বিজারণ বিক্রিয়া নয়?

2 F e C I_{2} (a q) + S a C l_{2} (a q) \to S n C l_{4} (a q) + F e C l_{2} (a q)

C u O (s) + H_{2} (g) \to C u (s) + H_{2} O (g)

N a C l (a q) + A g N o_{3} \to N a N o_{3} (a q) + A g C I (s)

H_{2} S (g) + C I_{2} (g) \to 2 H C I (g) + S (s)

ANS : 3

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