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A fresh piece of Mg ribbon loses its lus...

A fresh piece of Mg ribbon loses its luster after a few days. This is due to the formation of the compound………………

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The correct Answer is:
MgO
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MAXIMUM PUBLICATION-QUESTION PAPER MARCH 2019-EXAMPLE
  1. Atomic mass of Nitrogen is 14. which of the following sample contain 6...

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  2. The ore of a metal is lighter than the impurities. Which method is sui...

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  3. A fresh piece of Mg ribbon loses its luster after a few days. This is ...

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  4. The last subshell of an element is 3p and there are 3 electrons in it....

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  5. The last subshell of an element is 3p and there are 3 electrons in it....

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  6. An iron nail is dipped in CuSO4, solution. (Reactivity order Fe>Cu) ...

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  7. An iron nail is dipped in CuSO4, solution. (Reactivity order Fe>Cu) ...

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  8. 4g of NaOH is dissolved in water and the volume is made upto 1 L. (1...

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  9. 4g of NaOH is dissolved in water and the volume is made upto 1 L. (1...

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  10. Concentrated Cu2S is converted into oxide by roasting. Write the pro...

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  11. Concentrated Cu2S is converted into oxide by roasting. How impuritie...

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  12. Ethanoic acid is an organic compound having industrial values. How e...

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  13. Ethanoic acid is an organic compound having industrial values. Give ...

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  14. The CHEical equation for the manufacture of ammonia is N2(g)+3H2(g) to...

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  15. The CHEical equation for the manufacture of ammonia is N2(g)+3H2(g) to...

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  16. The CHEical equation for the manufacture of ammonia is N2(g)+3H2(g) to...

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  17. Alumina is mixed with cryolite and subjected to electrolysis to extrac...

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  18. Alumina is mixed with cryolite and subjected to electrolysis to extrac...

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  19. Alumina is mixed with cryolite and subjected to electrolysis to extrac...

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  20. Zinc piece and zinc powder are taken in two test tubes and equal amoun...

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