Chemistry
Grade-10
Easy
Question
Substance that has pH less than 7.
- Oranges
- Soaps
- Drain cleaner
- Laundry detergent
Hint:
The substances that have a pH of less than 7 are acids. Oranges are an example of this.
The correct answer is: Oranges
- Oranges are rich in vitamin C, commonly known as ascorbic acid, which gives them an acidic nature.
- Oranges have a pH that is acidic due to the presence of ascorbic acid, which causes them to be close to the pH of 3.
- Citric acid, another ingredient in oranges that gives them their sour flavor, is also present in them. In addition to tartaric acid, malic acid, lactic acid, and oxalic acid, oranges also contain additional acids that contribute to their acidic nature. Thus, it is clear that oranges naturally contain acid.
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