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Hard water and soft water can be distinguished by using
Answer & Solution
Correct Answer:
Option
C
Hard water and soft water can be distinguished by using detergent.
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Login3) Ordinary soap
Here's why:
* Ordinary soap (bar soap) readily reacts with the minerals (calcium and magnesium) in hard water, forming a scum. This scum makes it difficult to lather the soap.
Right answer opt B ) ordinary soap as it will make foam in soft water but not in hard water