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Match List - I with List - II
List I List II
A N₂(g)+3H₂(g) $\to$ 2NH₃(g) I Cu
B CO(g)+3H₂(g) $\to$ CH₄(g)+H₂O(g) II Cu/ZnO-Cr₂O₃
C CO(g)+H₂(g) $\to$ HCHO(g) III Fe+K₂O+Al₂O₃
D CO(g)+2H₂(g) $\to$ CH₃OH(g) IV Ni

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(A) - (II), (B) - (IV), (C) - (I), (D) - (III)

(A) - (III), (B) - (I), (C) - (IV), (D) - (II)

(A) - (II), (B) - (I), (C) - (IV), (D) - (III)

(A) - (III), (B) - (IV), (C) - (I), (D) - (II)

answer is C.

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in habers process we use iron as catalyst and potassium and aluminium oxide as promoters

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