You Purchase a Laundry Product That Claims to Use Natural

question 71

Multiple Choice

You purchase a laundry product that claims to use natural enzymes to remove stains from clothing.After spilling grape juice on your favorite shirt,you apply the product and wash your shirt (following the directions,of course) .When you pull the shirt out of the washer,the stain is still there! Which of the following might explain why the stain remover did not work?

• A) The stain remover and the grape juice are both hydrophilic, so the enzymes could not interact with the stain.
• B) The pH of the water in your house has a pH of 7.0, which prevents the enzymes from working properly.
• C) Before you got home from the store, you stopped at the mall and left your stain remover in the trunk of your car on a hot day, denaturing the enzymes.
• D) The stain remover and the grape juice are both hydrophobic, so the enzymes could not interact with the stain.

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