OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
A student has a substance with a pH of 9. What should the student add to the solution to lower the pH?
|
|
Vinegar
|
|
|
Hand Soap
|
|
|
Household ammonia
|
|
|
Bleach
|
Explanation:
Detailed explanation-1: -A solution with a pH of 9 is basic in nature. The pH measures the hydrogen ion ( ) concentration. On dilution (adding water), the dissociation of water molecules will give an equal number of hydrogen ions and hydroxide ions.
Detailed explanation-2: -Updated On: 27-06-2022 Its pH can be increased by adding small amount of base like sodium hydroxide. Basic solutions have pH more than 7. Similarly. pH can be deceased by adding small amount of acid like hydrochloric acid.
Detailed explanation-3: -Vinegar is very acidic, with a pH of 2–3.
There is 1 question to complete.