Metals And Their Metallurgy - 2


Chemistry Class 10
1. Froth floatation process is used to concentrate some metals.

   
2. Steel is an alloy of iron.

   
3. Non-Metals do not absorb light.

   
4. The pig iron is remelted and converted into block then called wrought iron.

   
5. Metal ions bear charge

   

   
Chemistry Class 10
6. Oxides of non-metals are

   

   
Chemistry Class 10
7. Cryolite is ore of

   

   
Chemistry Class 10
8. Stainless steel is free from sulphur phosphorus and

   

   
Chemistry Class 10
9. Blast furnace is made of steel and its height is about

   

   
Chemistry Class 10
10. In Blast furnace when the carbon dioxide reacts with more carbon and forms carbon monoxide this is

   
   
Chemistry Class 10
11. In open hearth process at the end a little fluorspar is added in the iron which separate the

   

   
Chemistry Class 10
12. In steel which ore is best for it

   

   
Chemistry Class 10
13. Silicon steel is used in making

   

   
Chemistry Class 10
14. Which type of steel is heat resistant

   

   
Chemistry Class 10
15. In froth flotation process, copper ore powder is mixed with

   

   
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