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Name the hardest natural substance known...

Name the hardest natural substance known

A

diamond

B

aluminium

C

graphite

D

silver

Text Solution

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The correct Answer is:
A
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TARGET PUBLICATION-METALLURGY-CHAPTER ASSESSMENT
  1. Name the hardest natural substance known

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  2. Which one of the following metals does catch fire rapidly when it come...

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  3. A student added zinc strip to a solution of CuSO4. After several minut...

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  4. Aqueous solution of which of the following does NOT conduct electricit...

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  5. Which of the following metals does not react with cold or hot water bu...

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  6. Identify the odd one out and justify . Platinum , gold , silver , al...

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  7. Complete the anology and explain Gallium : : : Iodine : Solid

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  8. True or False . If false, write the correct sentence . Potassium rea...

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  9. Match the following reactions given in Group 'A' with the observations...

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  10. Given scientific reasons Pine oil is used in froth floatation

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  11. Given scientific reasons Anodes need to be replaced from time to tim...

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  12. Write chemical equations for the reactions of copper with dilute and c...

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  13. What are the constituents of stainless stell alloy ? Which property of...

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  14. Identify acidic and basic oxides from the following : Na2O, SO2 , MgO ...

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  15. Complete the following reactions : Cl(2(g)) + H2O((l)) to square + s...

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  16. The adjacent figure represents electrolytic reduction of alumina. ...

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  17. The adjacent figure represents electrolytic reduction of alumina. ...

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  18. The adjacent figure represents electrolytic reduction of alumina. ...

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  19. What are alloys ? Explain with suitable examples properties of alloys ...

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  20. Explain froth floatation process with labelled diagram

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