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Why oxygen only forms diatomic molecule ...

Why oxygen only forms diatomic molecule among group 16 elements and others form octa atomic solid?

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UNITED BOOK HOUSE-SET-15-EXERCISE
  1. Draw temperature vs degree of adsorption curve for both physical and c...

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  2. Write two differences between Iyophilic and lyophobic sol.

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  3. Why oxygen only forms diatomic molecule among group 16 elements and ot...

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  4. Chrome alum is a double salt but potassium ferricyanide is a complex s...

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  5. What is co-polymerisation?

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  6. Write the name and formula of monomer unit of natural rubber.

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  7. Chromium, forms a body centred Cubic lattice. If the side length of th...

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  8. What is schotsky defect? Find the packing efficiency of face centred c...

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  9. State the factors on which osmotic pressure of a liquid depends. 10gm ...

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  10. Define equvalent conductance and state its unit. To make 0.005 mm thic...

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  11. Calculate the EMF of the electrochemical cell for which the following ...

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  12. State with proper reason for which ores calcination and roasting appli...

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  13. Write with balanced chemical equation what will happen when a mixture ...

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  14. Complete the followign reaction. XeF6 + H2O rarr

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  15. Write General electronic configuraiton for group 18-f-block element. H...

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  16. Show mechanistic path way of the reaction tertiary butyl bromide is tr...

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  17. Identify A,B,C,D,E,F in the reaction given below:

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  18. An organic compound A (C3H5N) when heated with concentrated NaOH, NH3 ...

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  19. Arrange the following acid as per their increasing strength - State re...

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  20. State the arrowhead equation for the reaction given below: Propanone i...

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