Read the passage carefully and answer the Questions.

The term vitamin was coined from the word vital +amine since the earlier identified compounds had amino groups. Later work showed that most of them didn't contain amino groups. They are very essential for the body. They has to be taken various diet or in the form of medicines also.

Vitamins are classified into two groups depending upon their solubility in water or fat.

Fat soluble vitamins are soluble in fat and oils but insoluble in water. They are stored in liver and adipose (fat storing) tissues

Water-soluble vitamins are soluble in water. These must be supplied regularly in diet because they are readily excreated in urine and cannot be stored in our body.

Which vitamin is known as Riboflavin?

Vitamin $B_2$

The correct answer is Option (1) → Vitamin $B_2$

Quick Reference for Vitamin B Complex

The Vitamin B group consists of several distinct compounds, each with its own chemical name:

• Vitamin $B_1$: Thiamine
• Vitamin $B_2$: Riboflavin
• Vitamin $B_6$: Pyridoxine
• Vitamin $B_{12}$: Cyanocobalamin

Key Properties of Vitamin $B_2$

• Solubility: As mentioned in the passage, it is a water-soluble vitamin. This means your body does not store it in large amounts and excess is excreted through urine (often giving it a bright yellow color).
• Function: It is essential for energy production, helping the body break down proteins, fats, and carbohydrates. It also plays a vital role in maintaining the body's energy supply.
• Sources: Common food sources include milk, eggs, green vegetables, and enriched cereals.