Surface Chemistry - Result Question 5

####5. Match the catalysts Column I with products Column II.

(2019 Main, 9 April I)

Column I (Catalyst) Column II (Product)
(A) V2O5 (i) Polyethlyene
(B) TiCl4/Al(Me)3 (ii) Ethanal
(C) PbCl2 (iii) H2SO4
(D) Iron oxide (iv) NH3

(a) (A)-(ii), (B)-(iii), (C)-(i), (D)-(iv)

(b) (A)-(iv), (B)-(iii), (C)-(ii), (D)-(i)

(c) (A)-(iii), (B)-(i), (C)-(ii), (D)-(iv)

(d) (A)-(iii), (B)-(iv), (C)-(i), (D)-(ii)

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Answer:

Correct Answer: 5. (b)

Solution:

  1. Correct match is

(A) (iii); (B) (i); (C) (ii); (D) (iv)

(i) TiCl4+AlCl3 (Ziegler- Natta catalyst) is used to prepare polyethylene from ethene.

(ii) V2O5 (Vanadium pentoxide) is used as catalyst to prepare H2SO4 from contact process. Reaction involved is

2SO2(g)+O2(g)V2O52SO3(g)

It is the key step in the manufacture of H2SO4.

(iii) Fe (Iron) is used as catalyst in Haber’s process for the manufacture of ammonia.

N2(g)+3H2(g)Fe(s)2NH3(g)

(iv) Pd (Palladium) is used to prepare ethanal. Reaction involved is

H2C=CH2+O2H2OPdCl2/CuCl2CH3CHO

This reaction is also known as Wacker’s process.



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