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What are alloys?...

What are alloys?

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An alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal. For example:
(i) Stainless steel is an alloy of Nickel and Chromium.
(ii) Amalgam is an alloy of Mercry.
(iii) Brass is an alloy of Copper and Zinc.
(iv) Bronze is an alloy of Copper and Tin.
(v) Solder is alloy of Lead and Tin.
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OSWAL PUBLICATION-METALS AND NON-METALS-NCERT Corner (Intext Questions)
  1. Why is sodium kept immersed in kerosene oil?

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  2. Write equation for the reaction of iron with steam.

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  3. Write equations for the reactions of Calcium and potassium with wate...

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  4. Samples of four metals A, B, C and D were taken and added to the follo...

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  5. Samples of four metals A, B, C and D were taken and added to the follo...

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  6. Samples of four metals A, B, C and D were taken and added to the follo...

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  7. Which gas is produced when dilute hydrochloric acid is added to a reac...

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  8. What would you observe when zinc is added to a solution of iron (II) s...

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  9. Write the electron dot structures of sodium, oxygen and magnesium.

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  10. Show the formation of Na(2)O and MgO by the transfer of electrons.

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  11. What are the ions present in these compounds? Na(2)O and MgO.

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  12. Why do ionic compounds have high melting points?

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  13. Define the following terms. (i) Mineral (ii) Ore (iii) Gangue

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  14. Define the following terms. Ore

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  15. Define the following terms. (i) Mineral (ii) Ore (iii) Gangue

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  16. Name two metals which are found in nature in the free state.

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  17. What chemical process is used for obtaining a metal from its oxide?

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  18. Metallic oxides of zinc, magnesium and copper were heated with the fol...

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  19. Which metals do not corrode easily?

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  20. What are alloys?

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