Question

Match List - I with List - II 
 

List-I (Processes/Reactions)		List-II (Catalyst)
A	$2 SO _2( g )+ O _2( g ) \rightarrow 2 SO _3( g )$	I	$Fe ( s )$
B	$4 NH _3( g )+5 O _2( g ) \rightarrow$$4 NO ( g )+6 H _2 O ( g )$	II	$Pt ( s )- Rh ( s )$
C	$N _2( g )+3 H _2( g ) \rightarrow 2 NH _3( g )$	III	$V _2 O _5$
D	Vegetable oil $(l)+ H _2 \rightarrow$Vegetable ghee(s	IV	$Ni ( s )$

Choose the correct answer from the options given below:

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

Answer 1

The Correct Option is B

To correctly match the processes/reactions from List-I with their respective catalysts in List-II, we need to identify the typical industrial or chemical processes represented by these reactions and the catalysts they use.

1. 2 \,SO_2 (g) + O_2 (g) \rightarrow 2 \,SO_3 (g): This reaction is part of the Contact Process used to produce sulfuric acid. The catalyst commonly used in this process is V_2O_5 (Vanadium(V) oxide). Hence, A matches with III.
2. 4 \,NH_3 (g) + 5 \,O_2 (g) \rightarrow 4 \,NO (g) + 6 \,H_2O (g): This is the Ostwald Process for producing nitric acid, which uses a platinum-rhodium (Pt-Rh) catalytic gauze. Hence, B matches with II.
3. N_2 (g) + 3 \,H_2 (g) \rightarrow 2 \,NH_3 (g): This represents the Haber process for ammonia production, where the catalyst used is typically iron (Fe). Hence, C matches with I.
4. Vegetable oil (l) + H_2 \rightarrow Vegetable ghee (s): This hydrogenation process uses nickel (Ni) as a catalyst. Hence, D matches with IV.

Based on the above analysis, the correct matching is:

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