UPSC Prelims 2006·GS1·science-and-technology·science and technology

Consider the following statements: 1. Caffeine, a constituent of tea and coffee is a diuretic. 2. Citric acid is used in soft drinks. 3. Ascorbic acid is essential for the formation of bones and teeth. 4. Citric acid is a good substitution for ascorbic acid in our nutrition. Which of the statements given above are correct?

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  1. A1 and 2, only
  2. B1, 2 and 3, onlyCorrect
  3. C3 and 4 only
  4. D1, 2, 3 and 4

Explanation

Statement 1 is correct because caffeine is a known diuretic, meaning it increases the production of urine and helps the body eliminate excess water. Statement 2 is correct because citric acid is widely used in the food and beverage industry, particularly in soft drinks, to provide a sour taste and act as a preservative. Statement 3 is correct because ascorbic acid, also known as Vitamin C, plays a vital role in the synthesis of collagen, which is essential for the structural integrity and health of bones, teeth, and skin. Statement 4 is incorrect because while both are acids found in fruits, they serve different biological functions. Citric acid cannot replace ascorbic acid in nutrition because citric acid is not a vitamin and cannot prevent deficiency diseases like scurvy. Therefore, statements 1, 2, and 3 are correct, making option B the right answer.
science-and-technology: Consider the following statements: 1. Caffeine, a constituent of tea and coffee is a diuretic. 2. Citric acid is used in
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