Advertisements
Advertisements
Question
With the help of examples, describe how metal oxides differ from non-metal oxides.
Solution
Metal oxides are generally basic in nature, which can turn red litmus solution to blue while non-metal oxides are generally acidic in nature, which can turn blue litmus solution to red. For example, sodium oxide and potassium oxide are metal oxides which are basic in nature; carbon dioxide and sulphur dioxide are non-metal oxides which are acidic in nature.
APPEARS IN
RELATED QUESTIONS
Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows.
Metal | Iron (II) sulphate | Cooper (II) sulphate | Zinc sulphate | Silver nitrate |
A | No reaction | Displacement | ||
B | Displacement | No reaction | ||
C | No reaction | No reaction | No reaction | Displacement |
D | No reaction | No reaction | No reaction | No reaction |
Use the Table above to answer the following questions about metals A, B, C and D.
- Which is the most reactive metal?
- What would you observe if B is added to a solution of copper (II) sulphate?
- Arrange the metals A, B, C and D in the order of decreasing reactivity.
Differentiate between metal and non-metal on the basis of their chemical properties.
Explain why, the surface of some metals acquires a dull appearance when exposed to air for a long time.
How do non-metals react with hydrogen? Explain with an example.
What happens when calcium reacts with chlorine? Write an equation for the reaction which takes place
What happens when a rod of zinc metal is dipped into a solution of copper sulphate? Give chemical equation of the reaction involved.
A copper plate was dipped in AgNO3 solution. After certain time, silver from the solution was deposited on the copper plate. State the reason why it happened. Give the chemical equation of the reaction involved.
Write the chemical equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced is ignited with a burning matchstick?
Choose the correct alternative and rewrite the following:
Which of the following is lue in colour?
Write the chemical equation for the following reaction:
Calcium metal reacts with water.