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An element X oif atomic number 12 combin...

An element X oif atomic number 12 combines with an element Y of atomic number 17 to form a compound `XY_(2)`. State the nature of chemical bond in `XY_(2)` and show how the electron configurations of X and Y change in the formation of this compound.

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Ionic bond, The electronic configuration of X changes from 2,8,2 to 2,8: The electronic configuration of Y changes from 2,8,7 to 2,8,8
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LAKHMIR SINGH & MANJIT KAUR-METALS AND NON-METALS-Exercise
  1. The electronic configurations of two elements A and B are given below:...

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  2. Four elements A, B, C and D have the following electron arrangement in...

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  3. An element X oif atomic number 12 combines with an element Y of atomic...

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  4. The electronic configurations of three elements A, B, and C are as fol...

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  5. the electronic configurations of four particles A,B,C and D are given ...

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  6. The atomic number of an element X is 12. (a). What must an atom of X...

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  7. The atomic number of an element Y is 16. (a). What must an atom of Y...

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  8. You can buy solid air-freshnersin shops. Do you think these substanecs...

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  9. Give the formulae of the chlorides of the elements X and Y having atom...

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  10. A zinc ore gave CO(2) on treatment with a dilute acid. Identify the or...

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  11. What chemical process is used for obtaining a metal from its oxide?

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  12. State two ways to prevent the rusting of iron.

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  13. What is meant by galvanisation? Why is it done?

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  14. Name the metal which is used for galvanising iron.

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  15. Explain why,iron sheets are coatedwith zinc.

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  16. Why do we apply paint on iron articles?

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  17. Give reason for the following: Carbonate and sulphide ores are usual...

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  18. Name a reducing agent that may be used to obtain manganese from mangan...

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  19. Name an alloy of lead and tin.

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  20. Give the composition of an alloy called solder. State its one property...

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