The unit of a scale used to measure the level of acidity or alkalinity of chemicals is called:
Correct answer: B. pH
- A. Ec
- B. pH
- C. Pascal
- D. None of the above
Explanation
pH is the logarithmic scale used to express hydrogen-ion activity and indicate acidity or alkalinity, with 7 regarded as neutral. EC measures salt-related electrical conductivity, not acidity or alkalinity.
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