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प्रश्न
Mention two uses of the following metals and non-metals
Iron
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उत्तर
It is used to make pipes, tanks, railing, etc.
It is used in the construction of power transmission towers.
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संबंधित प्रश्न
Tinning : Tin : : Galvanizing : _________
What is meant by galvanisation? Why is it done?
In stainless steel alloy, iron metal is mixed with ______.
Four metals P, Q, R and S are all obtained by the reduction of their oxides with carbon. Metal P is used to form a thin layer over the sheets of metal S to prevent its corrosion. Metal Q is used for electroplating tiffin boxes made of metal S whereas metal R is used in making car batteries. Metals Q and R form an alloy called solder. What are metals P, Q, R and S? How have you arrived at this conclusion?
What are the adverse effects of corrosion?
Find the correlation:
Bronze : ______ :: Tin : Cu+Zn.
Observe the following diagram and give answers.
- Name this method of prevention of corrosion.
- For prevention of which metal this method is used?
- What is used as anode in this method?
The process of coating the surface of the metal with a thin layer of zinc is called ______
The table shown below gives information about four substances: A, B, C and D.
| SUBSTANCE | MELTING POINT (K) | ELECTRICAL CONDUCTIVITY | |
| SOLID | LIQUID/ AQUEOUS | ||
| A | 295 | Good | Good |
| B | 1210 | Poor | Good |
| C | 1890 | Poor | Good |
| D | 1160 | Poor | Poor |
Identify Ionic compounds from the above given substances.
Explain the following:
Bubbles are produced when acetic acid is added to a solution of sodium hydrogencarbonate.
