In the above reactions, the enzyme A and enzyme B respectively are :-

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Enzyme identification:

Reaction 1: Sucrose () + H₂O → Glucose + Fructose

This is hydrolysis of sucrose (inversion of sucrose). The enzyme that catalyses this is Invertase (also called sucrase).

Reaction 2: Glucose/Fructose → 2 C₂H₅OH + 2 CO₂

This is alcoholic fermentation of glucose. The enzyme that catalyses this is Zymase (a complex of enzymes found in yeast).

Other enzymes:
- Amylase: hydrolyses starch to maltose
- Maltase: hydrolyses maltose to glucose

Final Answer: Option (3) — In

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