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प्रश्न
Name one metal occurring as a : Carbonate ore
उत्तर
Zinc
APPEARS IN
संबंधित प्रश्न
What is galvanization? How does it protect iron from rusting?
Give three ways in which the metal zinc differs from the non-metals carbon. At least one of the differences must be a chemical difference?
Name an alloy of lead used in electrical wiring or electrical work in joining metals.
From the metals: copper, iron, magnesium, sodium, and zinc, select a different metal in the case which arranges the above metals in the decreasing order of reactivity.
Give two properties of alloys which are different from constituent metals.
Give the name and formula of an ore of zinc.
What in addition to a zinc compound, is put into the furnace? State one large scale use of zinc.
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 |
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
The metals zinc and tin are present in the alloy
The ore which can be concentrated by magnetic separation.
