The statement which is correct about acids or base is if blue litmus paper turns red, the substance has a pH below 7 and is an acid.
What are acids and bases?
Acids are those substances which has a pH value below 7 and bases are those substances which has a pH value greater than 7.
Acids turn blue litmus paper to red color and Bases turn red litmus paper to blue color.
- If blue litmus paper turns red, the substance has a pH below 7 and is an acid is true.
- If blue litmus paper turns red, the substance has a pH above 7 and is a base is incorrect.
- If blue litmus paper turns red, the substance has a pH below 7 and is a base is also incorrect.
- If blue litmus paper turns red, the substance has a pH above 7 and is an acid is also incorrect.
So correct statement is if blue litmus paper turns red, the substance has a pH below 7 and is an acid.
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https://brainly.com/question/24500957
