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Alum is used for...

Alum is used for

A

cleaning turbid water

B

making water muddy

C

making water tasty

D

None of the above

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### Step-by-Step Solution: 1. **Understanding Alum**: Alum is a chemical compound known as Aluminium Sulphate. It is commonly referred to as alum in various contexts. 2. **Primary Use of Alum**: The main application of alum is in water treatment processes. It is particularly effective in purifying water by removing impurities. 3. **Mechanism of Action**: Alum works by causing the particles in the water to clump together (a process known as coagulation). This helps in removing unwanted colors and turbidity from the water. 4. **Identifying the Correct Option**: Given the options: - A) Cleaning turbid water - B) Making water muddy - C) Making water tastier - D) None of this The correct answer is option A, as alum is primarily used for cleaning turbid water. 5. **Conclusion**: Therefore, alum is used for cleaning turbid water, making it clearer and safer for consumption.
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