Advertisements
Advertisements
Question
What is the pH of a neutral solution?
Solution
A neutral solution has a pH value of 7. It is free of ions such as H+ and OH-.
APPEARS IN
RELATED QUESTIONS
Which of the following types of medicine is used for treating indigestion caused by over-eating?
(a) antibiotic
(b) analgesic
(c) antacid
(d) antiseptic
Fill in the following blank with suitable words:
Neutral substances have a pH of ................
Fresh milk has a pH of 6. When it changes into curd (yogurt), will its pH value increase or decrease? Why?
How does a universal indicator work?
A farmer has found that the pH of soil in his fields is 4.2. Name any two chemical materials which he can mix with the soil to adjust its pH.
What do you think will be the pH of an antacid solution: less than 7 or more than 7?
Add a few drops of hibiscus indicator to the soap solution. What do you observe?
Assertion: Methyl orange and phenolphthalein are natural indicators.
Reason: Methyl orange is yellow in colour while phenolphthalein is pink.
Name the acid present in vinegar.
Take some lemon juice in a tumbler and add baking soda slowly. What do you see? What do you infer from this?