SELECT * FROM question_mgmt as q WHERE id=3587 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=16 AND chapterId=255 and ex_no='5' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 10th science Carbon and Its Compound would you be able to check if water is hard by usi

Question:

Would you be able to check if water is hard by using a detergent?

Answer:

Detergents are ammonium or sulphonate salts of long chain carboxylic acids. Unlike soap, they do not react with calcium and magnesium ions present in hard water to form scum. Detergent produces a good amount of lather irrespective of whether the water is hard or soft. This means that detergents can be used in both soft and hard water. Therefore, it cannot be used to check whether the water is hard or not.


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Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

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