Match the catalysts given in List-I with the process catalyzed by them given in List-II
|
List-I Catalyst |
List-II Process |
|
(A) Ni in presence of Hydrogen |
(I) Ziegler Natta Catalyst |
|
(B) Finely divided iron |
(II) Vegetable oil to ghee |
|
(C) \( TiCl_4 + Al(CH_3)_3 \) |
(III) Sandmeyer reaction |
|
(D) \( Cu_2Cl_2 \) |
(IV) Haber's process |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
Transition metals and their compounds are good catalysts, because they can adopt several oxidation states and form complexes, and because their surfaces can bind reactant molecules. Each catalyst in List-I is used for one well-known process.
(A) Ni in presence of Hydrogen — This matches (II) Vegetable oil to ghee. Nickel catalyses the hydrogenation of the C=C bonds of liquid vegetable oils, which turns them into solid fats (vanaspati ghee).
\( \displaystyle \ce{R-CH=CH-R' + H2} \xrightarrow[\Delta]{\ce{Ni}} \ce{R-CH2-CH2-R'} \)
(B) Finely divided iron — This matches (IV) Haber’s process. Iron catalyses the synthesis of ammonia from nitrogen and hydrogen.
\( \displaystyle \ce{N2(g) + 3H2(g) <=> 2NH3(g)} \)
(C) \(TiCl_4 + Al(CH_3)_3\) — This matches (I) Ziegler Natta Catalyst. Titanium tetrachloride with an aluminium alkyl forms the Ziegler catalyst used to polymerise ethene to polythene.
\( \displaystyle n\,\ce{CH2=CH2} \xrightarrow{\ce{TiCl4 + Al(CH3)3}} (\ce{CH2-CH2})_{n} \)
(D) \(Cu_2Cl_2\) — This matches (III) Sandmeyer reaction. Copper(I) chloride replaces the diazonium group of an arenediazonium salt by chlorine.
\( \displaystyle \ce{C6H5N2+Cl-} \xrightarrow{\ce{Cu2Cl2/HCl}} \ce{C6H5Cl + N2} \)
Shortcut: (C)-(I) appears only in Option (2).