Match List I with List II.

List-I (Enzyme)	List-II (Conversion of)
A. Invertase	I. Starch into maltose
B. Zymase	II. Maltose into glucose
C. Diastase	III. Glucose into ethanol
D. Maltase	IV. Cane sugar into glucose

Choose the most appropriate answer from the options given below

We need to match enzymes in List I with their functions in List II.

Invertase catalyzes the hydrolysis of sucrose (cane sugar) into glucose and fructose:
$$C_{12}H_{22}O_{11} + H_2O \xrightarrow{\text{Invertase}} C_6H_{12}O_6 \text{(glucose)} + C_6H_{12}O_6 \text{(fructose)}$$
So A matches with IV (Cane sugar into glucose).

Zymase is an enzyme complex found in yeast that catalyzes the fermentation of glucose into ethanol and carbon dioxide:
$$C_6H_{12}O_6 \xrightarrow{\text{Zymase}} 2C_2H_5OH + 2CO_2$$
So B matches with III (Glucose into ethanol).

Diastase (also known as amylase) catalyzes the hydrolysis of starch into maltose:
$$2(C_6H_{10}O_5)_n + nH_2O \xrightarrow{\text{Diastase}} nC_{12}H_{22}O_{11} \text{(maltose)}$$
So C matches with I (Starch into maltose).

Maltase catalyzes the hydrolysis of maltose into glucose:
$$C_{12}H_{22}O_{11} + H_2O \xrightarrow{\text{Maltase}} 2C_6H_{12}O_6 \text{(glucose)}$$
So D matches with II (Maltose into glucose).

Therefore, the final matching is A - IV, B - III, C - I, D - II.

Option C