Which series of reaction correctly chemical reactions related to iron and its compound
(IIT-JEE, 2014)

F e C l_{2}, h e a t \to F e C l_{3} h e a t, a i r \to F e C l_{2} Z n \to F e

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F e O_{2}, h e a t \to F e_{3} O_{4} C O, 600^{\circ} C \to F e C l_{2} C O, 700^{\circ} C \to F e

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F e d i l, H_{2} S O_{4} \to F e S O_{4} H_{2} S O_{4}, O_{2} \to F e (S O_{2})_{3} h e a t \to F e

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F e O_{2}, h e a t \to F e O d i l, H_{2} S O_{4} \to F e S O_{4} h e a t \to F e

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Solution

The correct option is B $F e O_{2}, h e a t \to F e_{3} O_{4} C O, 600^{\circ} C \to F e C l_{2} C O, 700^{\circ} C \to F e$

$I n (a), F e C l_{3}$ cannot be reduced when heated in air.
$I n (c), F e_{2} (S O_{4})_{3}$ cannot convert to Fe on heating; instead oxide(s) will be formed.
$I n (d), F e_{2} S O_{4}$ cannot convert to Fe on heating; instead oxide(s) will be formed.
Hence (b) is correct.

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