Question

question
which of the following ph values are more acidic?
select all that apply
ph 10^(-2)
ph 4
ph 2
ph 10^(-4)

Explanation:

Step1: Recall pH - acidity relationship

Lower pH values mean more acidic solutions. The pH scale ranges from 0 - 14, with values below 7 being acidic.

Step2: Analyze each option

• pH 10 - 2 is not a valid pH notation.
• pH 4 is acidic and lower than 7.
• pH 2 is acidic and lower than 4.
• pH 10 - 4 is not a valid pH notation.

Answer:

B. pH 4, C. pH 2