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What is rust? Explain it with the help o...

What is rust? Explain it with the help of a chemical reaction.

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MBD-METALS AND NON METALS-EXAMPLE
  1. What happen when:Magnesium is treated with dilute sulphuric acid?

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  2. What happen when: zinc is added to blue virtrol solution?

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  3. What is rust? Explain it with the help of a chemical reaction.

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  4. Write two alloys of iron?

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  5. Write the names of metals found in bronze and brass.

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  6. What is the reason of catchig fire by potassium and sodium on their ow...

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  7. Observe the figure given below and name the gas produced also give the...

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  8. Why ionic compound are solid at room temoerature?

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  9. How copper is extracted from its sulhide ore.write balanced equation.

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  10. Why school bells are made up of metal not of non metal?

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  11. Give one example of metal which is liquid at room temperature

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  12. Name one non metal which is lustrous?

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  13. Two solution has ph values of 5 and 8 respectively. which solution wil...

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  14. Name the non metal which conducts electricity.

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  15. why sodium chloride has high melting point?

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  16. Arrange the following metals in the increasing order of reactivity.

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  17. Out of sodium, calcium,aluminium,copper and magnesium name the metal w...

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  18. Potassium metal is kept under kerosene oil, why?

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  19. A non-metal x, exists in two farms Y and Z. Y is the hardest substance...

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  20. An element, A from two oxides AO and AO2 AO is neutral and AO2 is aci...

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