Which vitamins degenerates after polishing the rice?

Options

A. Ascorbic acid
B. Calciferol
C. Thyroxin
D. Thiamine

Explanation

To answer the question "Which vitamins degenerates after polishing the rice?", we can follow these steps:

### Step 1: Understand the process of polishing rice
Polishing rice involves removing the outer layers of the rice grain, which can lead to the loss of certain nutrients.

**Hint:** Think about what parts of the rice grain are removed during polishing.

### Step 2: Identify the vitamins present in rice
Rice contains several vitamins, including B vitamins, vitamin C, and vitamin D. Specifically, we need to focus on the B vitamins.

**Hint:** Recall the different types of vitamins and their solubility (water-soluble vs. fat-soluble).

### Step 3: Analyze the options given
The options provided are:
A. Ascorbic Acid (Vitamin C)
B. Calciferol (Vitamin D)
C. Thyroxine (not a vitamin, but a hormone)
D. Thymine (Vitamin B1)

**Hint:** Consider which of these vitamins are typically found in rice and which ones are water-soluble.

### Step 4: Determine which vitamin is lost during polishing
Thymine (Vitamin B1) is a water-soluble vitamin that is present in rice. During the polishing process, water-soluble vitamins like Thymine are more likely to be lost.

**Hint:** Remember that water-soluble vitamins are more susceptible to being lost during processing.

### Step 5: Conclude the answer
After analyzing the options and the effects of polishing rice, we conclude that the vitamin that degenerates after polishing rice is **Thymine (Vitamin B1)**.

**Final Answer:** The correct answer is D. Thymine.

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