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On a pH scale of 1 to 14, which is the correct order of substances?

A. oven cleaner - urine - blood
B. blood - urine - oven cleaner
C. urine - blood - oven cleaner
D. urine - oven cleaner - blood
E. oven cleaner - blood - urine

Answer :

Final answer:

On the pH scale, oven cleaner is very basic (pH 13-14), blood is slightly alkaline (pH 7.4), and urine is mildly acidic (pH around 6). The correct order from highest to lowest pH is blood, urine, and then oven cleaner. Therefore, the answer is option (b).


Explanation:

Understanding the pH Scale

The pH scale ranges from 0 to 14, where 0-6.9 is considered acidic, 7 is neutral, and 7.1-14 is alkaline (basic). The substances mentioned in your question can be ranked based on their typical pH values:

  1. Oven cleaner: Typically around pH 13-14, making itvery basic.
  2. Blood: Usually has a pH of around 7.4, which is slightly alkaline.
  3. Urine: Typically has a pH ranging from 4.5 to 8, commonly around 6, which is mildly acidic to neutral.

Given this order, the pH values suggest that the correct sequence from highest to lowest pH is:

  1. Oven cleaner (very basic)
  2. Blood (slightly alkaline)
  3. Urine (mildly acidic)

Thus, the correct option is (b) blood - urine - oven cleaner.


Learn more about pH scale here:

https://brainly.com/question/1433865


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