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Identify the s-block and p-block element...

Identify the s-block and p-block elements among the following elements :Mg, Cu, P, and Zn.

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 7-EXERCISE
  1. Calculate the number of atoms in 56u of He atom (Atomic mass of He = 4...

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  2. 1 amu = g.

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  3. Identify the s-block and p-block elements among the following elements...

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  4. Write the IUPAC name and symbol for the element with atomic number 119...

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  5. Classify the following system into open, closed or isolated : Hot tea ...

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  6. Identify 'X' in the figure.

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  7. Haemoglobin was found to contain- 0.335% iron (atomic weight of Fe = 5...

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  8. Show that if uncentainty in position and velocity are equal then uncer...

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  9. The shortest wavelength of H atom in Lyman series is x, then find the ...

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  10. Explain why PbCl4 is a good oxidising agent.

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  11. CO has both -oxidising and reducing property— explain.

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  12. What type of fission of a covalent bond products free radicals? Give a...

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  13. Write down the IUPAC name of the following compound:

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  14. Draw the structure of the following compound : 3, 4-dimethylpehtanoic ...

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  15. What is acid rain? How it effects on soil,vegetation and human health?

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  16. Why electronic energy is negative?

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  17. What do you understand by stationary state? Does an electron remain st...

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  18. Atomic radius of chlorine atom is0.99 overset@A but ionic radius of ch...

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  19. State the group number in the modern periodic table where solid, liqui...

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  20. Arrange Mg, Al, Si and Na in the increasing order of their ionisation ...

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