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प्रश्न
Which of the following elements would yield a neutral oxide?
Na, S, C, K, H
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उत्तर
H would yield neutral oxides.
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संबंधित प्रश्न
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.
Food cans are coated with tin and not with zinc because ______.
What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 minutes?
With the help of examples, describe how metal oxides differ from non-metal oxides.
Which of the following elements would yield a basic oxide?
Na, S, C, K, H
What is the nature of the oxide Na2O? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.
What special name is given to substances like aluminium oxide?
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?
What happens when a metal reacts with dilute hydrochloric acid? Explain with the help of an example.
What is meant by the reactivity series of metals?
Name one metal which displaces silver from a silver nitrate solution.
Which non-metal has been placed in the reactivity series of metals?
An acidic oxide is produced by the element ______.
The metals which can produce amphoteric oxides are ______.
The elements whose oxides can turn litmus solution blue are ______.
State and explain the reaction, if any, of the following metals with a solution of copper sulphate:
(a) Gold
(b) Copper
(c) Zinc
(d) Mercury
What is the cause of chemical bonding (or chemical combination) of atoms of elements?
Where does the metal aluminium, used in the thermit process, occurs in the reactivity series of metals?
An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following.
Metals are generally hard. Which of the following metals is an exception and can be cut with a knife?
