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The elements A,B and C belong to groups ...

The elements `A,B` and `C` belong to groups 1,14 to 17 respectively of the periodic table.
(a) Which two elements will form a covalent compound?
(b)Which two elements will form an ionic compound?

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The correct Answer is:
(a) B and C (b) A and C
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LAKHMIR SINGH & MANJIT KAUR-PERIODIC CLASSIFICATION OF ELEMENTS-Exercise
  1. An element X from group 2 of the periodic table reacts with an elemen...

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  2. The following diagram shows a part of the periodic table containing f...

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  3. The elements A,B and C belong to groups 1,14 to 17 respectively of the...

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  4. Find the neutral atom in the periodic table which has the same number ...

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  5. Write the names and symbols of two very reactive metals belonging to g...

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  6. The non-metal A is an important constituent of our food and most of th...

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  7. A non metal X which is the largest constituent of air combines with hy...

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  8. Solid sodium bicarbonate was placed on a strip of pH paper. The colour...

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  9. When dilute hydrochloric acid is added to granulated zinc placed in a ...

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  10. When an aluminium strip is kept immersed in freshly prepared ferrous s...

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  11. The description which most approximately suits sulphur dioxide gas is ...

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  12. Ethanoic acid was added in drops to water and it was noticed that :

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  13. A colourless liquid sample was tested with pH paper strip. The colour ...

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  14. Ehanoic acid was added to sodium hydrogencarbonate solution and the ga...

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  15. Which one of the following set ups is the most apropriate for the evol...

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  16. Four students A,B,C and D noted the initial colour of the solutions in...

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  17. Four gas jars filled with sulphur dioxide gas wer inverted into trough...

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  18. The colour of the pH strip turned red when it was dipped into a sample...

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  19. A drop of colourless liquid was placed on blue litmus paper. The litmu...

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  20. A piece of granulated zinc was dropped into copper sulphate solution. ...

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