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Question

# How many times more basic is a solution with a pH of 10 than a solution with a pH of 8?

A
A pH of 10 is two times as basic
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B
A pH of 8 is two times as basic
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C
A pH of 10 is 2.000 times as basic
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D
A pH of 8 is 20 times as basic
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E
A pH of 10 is 100 times as basic
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Solution

## The correct option is E A pH of 10 is 100 times as basicConcentration of OH− in a 10 PH solution = 10−4Concentration of OH− in a 8 PH solution = 10−6Ratio =(10−4/10−6)=100so 10 PH solution is 100 times more basic than 8 PH solution

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