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What is the reason of catchig fire by po...

What is the reason of catchig fire by potassium and sodium on their own?

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MBD-METALS AND NON METALS-EXAMPLE
  1. Write two alloys of iron?

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

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

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

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  5. Why ionic compound are solid at room temoerature?

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

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

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

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  9. Name one non metal which is lustrous?

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

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  11. Name the non metal which conducts electricity.

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  12. why sodium chloride has high melting point?

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

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

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

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

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

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  18. Name the reaction to convert metal ccarbonate into its oxide?

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  19. An element x reacts with oxide to from oxide,X2O which dissolves in wa...

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  20. What is the nature of metal oxides?

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