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A compound works well with hard water. I...

A compound works well with hard water. It is used for making shampoos and products for cleaning clothes. 'A' is not 100% biodegradable and causes water pollution, 'B' does not work well with hard water. It is 100% biodegradable and does not create water pollution Identify A and B

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A is a detergent and B is a soap
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