Advertisements
Advertisements
प्रश्न
Mention two uses of the following metals and non-metals
Iron
Advertisements
उत्तर
It is used to make pipes, tanks, railing, etc.
It is used in the construction of power transmission towers.
APPEARS IN
संबंधित प्रश्न
Two methods by which rusting of iron can be prevented are ______ and ______.
What is anodising? Give its applications.
What are the constituents of stainless steel?
Name an alloy of copper. State its chemical composition and any one use.
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?
Give reason.
An iron article should be given a coat of paint
Give reason for the following:
A suspension of rust is basic in nature.
Write scientific reason.
Anodization method is useful for prevention of the corrosion of the aluminium.
Explain concept with example/explain with the help of a balanced equation.
Corrosion
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.
