Question : Hard water and soft water can be distinguished by using
Option 1: Dilute acid
Option 2: Ordinary soap
Option 3: Detergent
Option 4: Liquid soap
Correct Answer: Detergent
Solution : The correct option is Detergent .
Hard water requires more detergent to remove stains and provide a deep cleaning. On the other hand, soft water makes the process easier because it requires less water and detergent for a thorough cleaning.
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Question : In a mixture of 25 litres, the ratio of acid to water is 4 : 1. Another 3 litres of water is added. The ratio of acid to water in the new mixture is:
Question : A vessel is filled with liquid, 3 parts of which are water and 5 parts syrup. How much of the mixture must be drawn off and replaced with water so that the mixture may be half water and half syrup?
Question : Vinegar made by fermentation from cane sugar contains:
Question : The acid used in lead storage cells is:
Question : The ratio of acid and water in the three samples is 2 : 1, 3 : 2, and 5 : 3. A mixture containing equal quantities of all three samples is made. The ratio of acid and water in the mixture is:
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