Match List-I with List-II.

	List-I		List-II
A.	Haber process	I.	Fe catalyst
B.	Wacker oxidation	II.	PdCl2
C.	Wilkinson catalyst	III.	[(PPh3)3RhCl]
D.	Ziegler catalyst	IV.	TiCl4 with Al(CH3)3

Choose the correct answer from the options given below :

To match the processes in List‑I with the correct catalysts in List‑II, we consider the well‑known industrial and laboratory reactions.

1. Haber process (A) – This is the industrial synthesis of ammonia from nitrogen and hydrogen. The reaction is carried out over an iron (Fe) catalyst under high pressure and temperature. Therefore, A matches with I (Fe catalyst).

2. Wacker oxidation (B) – This reaction converts an alkene (typically ethylene) to a ketone (acetaldehyde) using a palladium(II) chloride catalyst in the presence of copper(II) chloride as a co‑catalyst. The key catalyst is PdCl₂. Hence, B matches with II (PdCl₂).

3. Wilkinson catalyst (C) – The Wilkinson catalyst is the complex [(PPh₃)₃RhCl] used for homogeneous hydrogenation of alkenes. This directly corresponds to entry III in List‑II.

4. Ziegler catalyst (D) – Ziegler–Natta polymerisation employs a titanium tetrachloride (TiCl₄) component together with an organo‑aluminium compound such as Al(CH₃)₃. This matches entry IV (TiCl₄ with Al(CH₃)₃).

Combining these matches gives the correct set of correspondences: A‑I, B‑II, C‑III, D‑IV.