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The atomic number of an element X is 16....

The atomic number of an element X is 16. (b) What will be the valency of X ?

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MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. Write the electronic configuration of the element with atomic number 1...

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  2. The atomic number of an element X is 16. (a) Write down the electronic...

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  3. The atomic number of an element X is 16. (b) What will be the valency...

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  4. What is the reason for the different atomic masses of the isotopes of ...

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  5. State whether the statement is true or false- Phosgene is the commerci...

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  6. Match the column I with type of colloid given in coloumn II.

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  7. Match list I with list II and select the correct answer using the code...

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  8. Match list I of enzymatic reaction with enzyme given in list II:

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  9. An element has Z = 7. What is the valency of the element ? Also name t...

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  10. What is the number of valence electrons in the atoms of an element hav...

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  11. Give the number of protons, neutrons and electrons in the chlorine ha...

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  12. The mass number of two atoms X and Y is the same (40 each) but their a...

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  13. Elements having valency ‘one’ are :

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  14. For an element, Z = 9. The valency of this element will be :

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  15. The number of valence electrons in a sulphide ion, S2–, is :

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  16. The atomic number of an element X is 8 and that of element Y is 4. Bot...

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  17. What is the number of valence electrons in : (a) sodium ion, Na+

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  18. In physisorption adsorbent does not show specificity for any particula...

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  19. Which of the following is an example of absorption ?

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  20. On the basis of data given below predict which of the following gases ...

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