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What is Solder? Why is it used for weldi...

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

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### Step-by-Step Solution: 1. **Definition of Solder**: - Solder is defined as an alloy made by mixing two metals, specifically lead and tin. The typical composition of solder is approximately 63% tin and 37% lead. 2. **Understanding Alloys**: - An alloy is a mixture of two or more elements, where at least one is a metal. The combination of lead and tin creates solder, which has different properties than its individual components. ...
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OSWAL PUBLICATION-DIKSHA QUESTIONS -METALS AND NON-METALS (LONG ANSWER)
  1. State three reasons : sulphur is a non metal

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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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