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An element 'A' has two electrons in the ...

An element 'A' has two electrons in the outermost shell of its atom and combines with an element 'B' having seven electrons in the outermost shell, forming the compound `AB_(2)`. The compound when dissolved in water conducts electric current. Giving reasons, state the natrue of chemical bond in the compound.

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Ionic bond
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LAKHMIR SINGH & MANJIT KAUR-METALS AND NON-METALS-Exercise
  1. An element A has 4 valence electrons in its atom whereas element B has...

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  2. In the formation of a compound XY(2) atom X gives one electron to each...

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  3. An element 'A' has two electrons in the outermost shell of its atom an...

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  4. The electronic configurations of two elements A and B are given below:...

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

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

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

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

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

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

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

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

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

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

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

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

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

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  18. Explain why,iron sheets are coatedwith zinc.

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  19. Why do we apply paint on iron articles?

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

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