Which pH range is corrosive?

Which pH range is corrosive?

• A. 0-14
• B. 7
• C. 7-14
• D. 1-7

Answer: (D)

Corrosivity relates to how acidic or basic a liquid is and its potential to cause chemical burns or damage materials. On the pH scale, acids have a pH below 7, and stronger acids are more corrosive. The range from 1 to 7 includes all acidic solutions, from very strong acids toward weaker ones, which is why it’s treated as the corrosive range in this context. Neutral substances at pH 7 aren’t corrosive, and bases (pH above 7) can be corrosive too, but this item focuses on acidity as the corrosive factor. The other options either describe the entire scale, the neutral point, or the basic (alkaline) side, none of which align with the corrosive characterization used here.

Corrosivity relates to how acidic or basic a liquid is and its potential to cause chemical burns or damage materials. On the pH scale, acids have a pH below 7, and stronger acids are more corrosive. The range from 1 to 7 includes all acidic solutions, from very strong acids toward weaker ones, which is why it’s treated as the corrosive range in this context. Neutral substances at pH 7 aren’t corrosive, and bases (pH above 7) can be corrosive too, but this item focuses on acidity as the corrosive factor. The other options either describe the entire scale, the neutral point, or the basic (alkaline) side, none of which align with the corrosive characterization used here.