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प्रश्न
Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?
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उत्तर
Magnesium and aluminium are two metals that can displace hydrogen from dilute hydrochloric acid.
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संबंधित प्रश्न
Metal A has electronic configuration (2, 8, 1) and metal B has (2, 8, 8, 2). Which is more reactive? Why? Identify these metals.
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.
What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction that takes place.
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be:
Differentiate between metal and non-metal on the basis of their chemical properties.
Fill in the following blank with suitable word:
Ordinary aluminium strips are not attacked by water because of the presence of a layer of ................. on the surface of aluminium.
Which of the following elements would yield a basic oxide.
Na, S, C, K, H
What happens when a rod of zinc metal is dipped into a solution of copper sulphate? Give chemical equation of the reaction involved.
Name two metals which cannot displace hydrogen from dilute acids.
Which gas is produced when dilute hydrochloric acid is added to a reactive metal?
Zinc oxide is a metal oxide. Which of the following term best describes the nature of zinc oxide:
(a) an acidic oxide
(b) a basic oxide
(c) an amphoteric oxide
(d) a neutral oxide
Which one of the following four metals would be displaced from the solution of its salt by the other three metals?
(a) Zn
(b) Ag
(c) Cu
(d) Mg
Name a metal which It does not react with any physical state of water?
Which property of metals is used for making bells and strings of musical instruments like Sitar and Violin?
Generally, metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?
The substance that will be flattened on beating with a hammer is ______.
Metals are generally solid. Which of the following metals is in the liquid state at room temperature?
