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How do the properties of iron change whe...

How do the properties of iron change when small quantity of carbon is mixed with it.

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Iron becomes hard and strong when small quantity of carbon is mixed with it.
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Pure iron is soft and stretches easily when hot (a) How does this property of iron change when: (i) small amount of carbon is mixed with it? (ii) nickel and chromium are mixed with it? (b) Define an alloy. How is an alloy prepared? (c) An alloy has low melting point and is therefore used for electrical fuse. Name the alloy and write its constituents.

Alloys are prepared by mixing a metal with other metals or nonmetals in certain proportion. The properties of the main metal change when the metal is alloyed. i. How do the properties of iron change when carbon and chromium are mixed with it? ii. How do the properties of copper change when tin is mixed with it?

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OSWAL PUBLICATION-DIKSHA QUESTIONS -METALS AND NON-METALS (LONG ANSWER)
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  2. State three reasons : Magnesium is a metal

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  3. Give reason for the following: Titanium is a strategic metal.

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  4. Give reason for the following: Non metals do not form positively charg...

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  5. Give reason for the following: Aluminium is a reactive metal but does ...

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  6. Properties of ionic compound

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  7. Two Ores on Heating, A gives CO2 whereas ore B gives SO2. Explain the ...

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  8. When calcium metal is added to water, the gas evolved does not catch f...

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  9. Name a metal for each case : It displaces hydrogen gas from nitric aci...

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  10. A metal which does not react with cold water but reacts with steam.

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  11. What is meant by refining of metals? Name the most widely used method ...

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  12. What is thermite reaction? Give its one use.

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  13. Write the steps involved in the extraction of pure metals in the middl...

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  14. In the electrolytic refining of a metal M, what would you take as the ...

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  15. Write chemical equations for the following reactions: Cinnabar is heat...

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  16. What is Solder? Why is it used for welding electrical wires?

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  17. How do the properties of iron change when small quantity of carbon is ...

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  18. A metal X present in rock salt is highly reactive and it is stored und...

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