Advertisements
Advertisements
प्रश्न
Turmeric is used as a _______.
Advertisements
उत्तर
Turmeric is used as a indicator.
APPEARS IN
संबंधित प्रश्न
You have two solutions, A and B. The pH of solution A is 6 and pH of solution B is 8. Which solution has more hydrogen ion concentration? Which of this is acidic and which one is basic?
Why does tooth decay start when the pH of mouth is lower than 5.5?
Fill in the following blank with suitable words:
Neutral substances have a pH of ................
Explain the pH change as the cause of tooth decay. How can tooth decay caused by pH change be prevented?
The pH of a cold drink is 5. What will be its action on blue and red litmus solutions?
How does an antacid work?
Name two common antacids.
Name two common antacids.
A solution turns phenolphthalein indicator pink. The most likely pH of this solution will be:
(a) 6
(b) 4
(c) 9
(d) 7
Using the knowledge of acids and bases, write a secret message with the help of baking soda and beet root. Explain how it works.
(Hint: Prepare baking soda solution in water. Use this solution to write the message on a sheet of white paper with a cotton bud. Rub a slice of fresh beetroot over the message.)
