Advertisements
Advertisements
प्रश्न
The pH values of five solutions A, B, C, D and E are given below:
| A | 1 |
| B | 5 |
| C | 7 |
| D | 11 |
| E | 13 |
Which solution is weakly alkaline.
उत्तर
Solution D, with a pH value of 11, is weakly alkaline.
APPEARS IN
संबंधित प्रश्न
Which of the following types of medicine is used for treating indigestion caused by over-eating?
(a) antibiotic
(b) analgesic
(c) antacid
(d) antiseptic
Name the scientist who developed the pH scale.
What colour will universal indicator show if you add it to the following substances?
(a) potassium hydroxide, pH = 12
(b) soda water, pH = 5
(c) sulphuric acid, pH = 2
Fill in the following blank with suitable words:
Alkalis have a pH.............. than 7.
What is a universal indicator? For what purpose is it used?
What do you think will be the pH in the stomach of a person suffering from indigestion: less than 7 or more than 7?
What effect does the concentration of OH− ions have on the nature of a solution?
What is the colour of phenolphthalein in the basic solution?
Name the acid present in vinegar.
Take a shirt with turmeric powder strain. Wash the shirt with soap. Do you observe any change in the colour? Why?
