Advertisements
Advertisements
प्रश्न
Sodium hydroxide is a ______.
विकल्प
acid
base
oxide
alkali
Advertisements
उत्तर
Sodium hydroxide is a alkali.
APPEARS IN
संबंधित प्रश्न
Give one example in the following case:
A basic oxide which is soluble in water.
Bases are soapy to touch when they are dry.
All bases are alkalis.
A solution changes the colour of turmeric indicator from yellow to red. The solution is ______.
On adding phenolphthalein indicator to a colourless solution, no change is observed. What is the nature of this solution?
Look at figure which shows solutions taken in test tubes A, B, C and D. What colour is expected when a piece of red litmus paper is dropped in each test tube? Nature of the solutions is given in the table for your help.
| Test tube | Nature of Solution | Change in colour of red litmus |
| A | Neutral | |
| B | Basic | |
| C | Acidic | |
| D | Neutral |
Match the following:
| 1. | Sulphuric acid | a. | Weak base |
| 2. | Sodium hydroxide | b. | Strong acid |
| 3. | Acetic acid | c. | Strong base |
| 4. | Ammonium hydroxide | d. | Weak acid |
What are bases?
Which of the following pairs are weak bases?
One of the events that does not occur during photosynthesis is ______.
