AP BIOLOGY

BIOCHEMISTRY

PROPERTIES OF WATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Complete the sentence.A substance that is more basic has a ____ pH than a substance that is acidic.
A
lower
B
higher
C
the same
D
none of the above
Explanation: 

Detailed explanation-1: -The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic.

Detailed explanation-2: -pHs less than 7 are acidic while pHs greater than 7 are alkaline (basic).

Detailed explanation-3: -The lower the number (0-7), the more acidic it’s considered. And the higher the number (7 to 14), the more basic it is. The pH scale may seem small, but each whole number represents a ten-fold leap in concentration of either H ions or OH ions. For example, rain is slightly acidic with a pH that measures about six.

Detailed explanation-4: -The scale has values ranging from zero (the most acidic) to 14 (the most basic). As you can see from the pH scale above, pure water has a pH value of 7.

There is 1 question to complete.