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State two relevant observations for each...

State two relevant observations for each of the following: Lead nitrate crystals are heated in a hard glass test tube.

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State relevant observations for the following: Lead nitrate crystals are heated in á hard glass test tube.

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ICSE-METALLURGY-QUESTIONS FROM PREVIOUS ICSE BOARD PAPERS
  1. Identify the gas evolved in the following reaction when : a few crysta...

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  2. The metals zinc and tin are present in the alloy :

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  3. State two relevant observations for each of the following: Lead nitrat...

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  4. Using the information above, complete the following: .......... is ...

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  5. Using the information above, complete the following: Metal atoms te...

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  6. Using the information above, complete the following: Non-metallic ...

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  7. Using the information above, complete the following: Non-metallic e...

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  8. Using the information above, complete the following: Metals tend to...

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  9. The following questions relate to the extraction of aluminium by elect...

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  10. The following questions relate to the extraction of aluminium by elect...

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  11. The following questions relate to the extraction of aluminium by elect...

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  12. The main ore used for the extraction of iron is: (a)Haematite (b)Ca...

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  13. Heating an ore in a limited supply of air or in the absence of air at ...

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  14. Aluminium powder is used in thermite welding because :

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  15. State the main components of the following alloys: Brass

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  16. State the main components of the following alloys: Duralumin

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  17. State the main components of the following alloys: Bronze

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  18. Name the The property possessed by metals by which they can be bea...

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  19. Name the A compound added to lower the fusion temperature of elect...

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  20. Name the The ore of zinc containing its sulphide.

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