Advertisements
Advertisements
प्रश्न
State the property of the metal being utilized in the following :
| Use of metal | Property |
| Zinc in Galvanization | |
| Aluminium in Thermite welding |
उत्तर
| Use of metal | Property |
| Zinc in Galvanization | Zinc oxidises more readily than iron, thus preventing the rusting of iron. |
| Aluminium in Thermite welding | Aluminium is a good reducing agent. |
संबंधित प्रश्न
In the extraction of aluminium: Name the process of concentration of bauxite.
Which metal is extracted from cinnabar ore?
Name the electrode at which aluminium metal is produced.
Which of the following is an ore of mercury metal?
(a) rock salt
(b) cinnabar
(c) calamine
(d) haematite
The metal which can be extracted simply by heating the cinnabar ore in air is:
(a) Zn
(b) Cu
(c) Al
(d) Hg
The metal which can be extracted from pyrolusite ore is:
(a) mercury
(b) manganese
(c) aluminium
(d) magnesium
Answer the following questions based on the extraction of aluminium from alumina by Hall - Heroult’s Process :
Name the electrode, from which aluminium collected.
Which one of the following is not true of metal :
Metals form non-polar covalent compounds
Heating an ore in a limited supply of air or in the absence of air at a temperature just below its melting point is known as ______.
Two ores A and B were taken. On heating ore A gives CO2 whereas, ore B gives SO2. What steps will you take to convert them into metals?
