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प्रश्न
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 |
उत्तर
| Metal | 1 | 2 | 3 | 4 | 5 |
| Use | B | D | E | A | C |
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संबंधित प्रश्न
How does aluminum react with the Acid ?
Identify the pairs of metals and their ores from the following.
| Group A | Group B |
| a. Bauxite | i. Mercury |
| b. Cassiterite | ii. Aluminium |
| c. Cinnabar | iii. Tin |
Give reason for the following:
A neutral gas other than oxygen is formed at the anode during electrolysis of fused alumina.
What is an alloy? Give three reasons why alloys are made.
Give composition and uses of the following alloys. Mention the reason for its use.
Brass
Complete and balance the following equation:
Fe2O3 + → Al2O3 +
Name the ore of zinc containing its sulphide.
Write the equation for the reaction of zinc with following: Dilute sulphuric acid
Write the equation for the reaction of zinc of the following: Copper sulphate solution
Explain the following term:
Ore
