Metals And Their Metallurgy - 5

Chemistry Class 10
1. Limonite is a one of ________ metal.


Chemistry Class 10
2. Chalcophyrite is a ore of ________ Metal.


Chemistry Class 10
3. Good quality steel can be produced in an _________ process.


Chemistry Class 10
4. The process of Reduction is carried out in ________.


Chemistry Class 10
5. Low quality iron contain 3 percent carbon is called ________.


Chemistry Class 10
6. Blast furnace internally lined with ________.


Chemistry Class 10
7. Carbon monoxide is a good ________ agent in blast furnace.


Chemistry Class 10
8. Mixture of calcium silicate and calcium aluminate is called ________.


Chemistry Class 10
9. Mild steal contain ________ percent carbon.


Chemistry Class 10
10. Roasted ore is melted in blast furnace with coal and sand this step is called ________.


Chemistry Class 10
11. Impurities float in form is slage over copper compounds is called ________.


Chemistry Class 10
12. Blistered copper is pure by ________.


Chemistry Class 10
13. Kaloin is a ore of ________.


Chemistry Class 10
14. Sea Water contains more than 5% by weight of dissolved chlorides.


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