Which of the following options is false about a soap?
(a) The soap solution in water is neutral and can be used to wash all kinds of fabrics.
(b) Soap forms lather only in soft water.
(c) Soap is a metallic salt of higher fatty acids.
(d) Soap cannot be used in slightly acidic medium.
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Answer:
OPTION---D soap cannot be used in slightly acidic medium
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(a) The soap solution in water is neutral and can be used to wash all kinds of fabrics - False
Explanation:
Soap forms lather only in soft water. Soap is a metallic salt of higher fatty acids. Soap cannot be used in slightly acidic medium. These three statements are true.
The soap solution in water is neutral and can be used to wash all kinds of fabrics. This statement is False. The soap solution in water is alkaline and cannot be used to wash all kinds of fabrics. Fabrics that are sensitive to alkali need to be dry cleaned as they can't be washed with soap.
Option A is false.
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