Match List-I with List-II.

List-I	List-II
A. $$4NH_3(g) + 5O_2(g) \to 4NO(g) + 6H_2O(g)$$	I. NO(g)
B. $$N_2(g) + 3H_2(g) \to 2NH_3(g)$$	II. $$H_2SO_4(l)$$
C. $$C_{12}H_{22}O_{11}(aq) + H_2O(l) \to C_6H_{12}O_6 (Glucose) + C_6H_{12}O_6 (Fructose)$$	III. Pt(s)
D. $$2SO_2(g) + O_2(g) \to 2SO_3(g)$$	IV. Fe(s)

We need to match each reaction with its catalyst. List-II contains catalysts used in important industrial and laboratory reactions.

A. $$4NH_3(g) + 5O_2(g) \to 4NO(g) + 6H_2O(g)$$

This is the Ostwald process for manufacturing nitric acid. The catalyst used is Platinum (Pt).

$$\Rightarrow$$ A matches with III (Pt(s))

B. $$N_2(g) + 3H_2(g) \to 2NH_3(g)$$

This is the Haber process for synthesis of ammonia. The catalyst used is Iron (Fe).

$$\Rightarrow$$ B matches with IV (Fe(s))

C. $$C_{12}H_{22}O_{11}(aq) + H_2O(l) \to C_6H_{12}O_6 \text{ (Glucose)} + C_6H_{12}O_6 \text{ (Fructose)}$$

This is the hydrolysis (inversion) of sucrose. The catalyst used is dilute sulphuric acid ($$H_2SO_4$$).

$$\Rightarrow$$ C matches with II ($$H_2SO_4(l)$$)

D. $$2SO_2(g) + O_2(g) \to 2SO_3(g)$$

This is the Contact process for manufacturing sulphuric acid. While the primary catalyst is $$V_2O_5$$, the older Lead Chamber process uses NO(g) as a catalyst for the oxidation of $$SO_2$$.

$$\Rightarrow$$ D matches with I (NO(g))

The correct matching is: A-III, B-IV, C-II, D-I

Therefore, the correct answer is Option C.