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प्रश्न
Complete and balance the following equation:
Fe2O3 + → Al2O3 +
उत्तर
Fe2O3 + 2Al → 2Fe + Al2O3
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संबंधित प्रश्न
What is galvanization? How does it protect iron from rusting?
Name an ore which is concentrated by:
magnetic separation
Explain the term of Ores .
Complete the statement using every given option.
During the extraction of aluminium.........
Heating the aluminium ore with concentrated caustic soda.
Name the following:
The chief metal present in magnalium and duralumin
List 1 contains the meta ls I alloys (1, 2, 3, 4, 5 ) and list 2 contains their uses (A, B, C, D, E).
| List 1 Metal/Alloy |
List 2 Uses |
| 1. Aluminium | A. Steel making |
| 2. Lead | B. aeroplane wings |
| 3. Brass | C. galvanizing |
| 4. Iron | D. radiation shield |
| 5. Zinc | E. electricaI fittings |
Copy and complete the following table, write down the correct letter against the numbers representing metals. An answer may be used only once. The first has been done for you.
| Metal | 1 | 2 | 3 | 4 | 5 |
| Use | B |
Write the equation for the reaction of zinc with following: Dilute sulphuric acid
A to F below relate to the source and extraction of either zinc or aluminium.
- Bauxite
- Coke
- Cryolite
- Froth floatation
- Sodium hydroxide solution
- Zinc blende
Write down the three letters each from the above list which are relevant to:
- Zinc
- Aluminium
Find the odd one out of the following and explain your choice.
Sulphur, Phosphorous, Carbon, Iodine
Explain concept with example/explain with the help of a balanced equation.
Ores
