Advertisements
Advertisements
Question
Write any four uses of bases.
Advertisements
Solution
- Sodium hydroxide is used in the manufacture of soap.
- Calcium hydroxide is used in white washing of building.
- Magnesium hydroxide is used as a medicine for stomach disorder.
- Ammonium hydroxide is used to remove grease stains from cloths
APPEARS IN
RELATED QUESTIONS
How would you obtain an alkali from a base.
Distinguish between acid and alkali (other than indicators).
Main constituent of base is ______.
Salts are neutral.
All bases are alkalis.
A solution changes the colour of turmeric indicator from yellow to red. The solution is ______.
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 |
Phenolphthalein gives ______ colour with lime water.
Water-soluble bases are called ______.
A small amount of copper oxide was taken in a beaker and dilute hydrochloric acid was added with continuous stirring of the solution. Name the compound formed and state the colour of its solution. Write the balanced chemical equation for the reaction that occurs. Based on the reaction, state the nature (acidic/basic) of copper oxide.
