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प्रश्न
Assertion (A): The strength of an acid or base is measured on a scale of numbers called the pH scale. The pH scale has values from 0 to 14.
Reason (R): In case of acids, higher the pH, stronger the acid.
विकल्प
Both A and R are true and R is correct explanation of the assertion.
Both A and R are true but R is not the correct explanation of the assertion.
A is true but R is false.
A is false but R is true.
MCQ
अभिकथन और तर्क
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उत्तर
A is true but R is false.
Explanation:
The assertion is true because the pH scale accurately measures the strength of acids and bases and ranges from 0 to 14. However, this is false because the relationship is inverted for acids: the lower the pH, the stronger the acid (solutions with a pH closer to 0 have a much higher concentration of hydrogen ions).
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