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It the energy of 1st Bohr orbit be 13.6e...

It the energy of 1st Bohr orbit be 13.6eV of a hydrogen atom, then calculate the energy for 2nd orbit in Joule.

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 6-EXERCISE
  1. Show that the atomic weight of Metal M having equivalent weight x form...

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  2. 1eV = How much Joule? What do you understand by the term isostere?

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  3. It the energy of 1st Bohr orbit be 13.6eV of a hydrogen atom, then cal...

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  4. Why the melting point of Boron is so high? State one use of Boron Carb...

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  5. Why the phenolphthalein turns pink in borax solution? Why it becomes c...

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  6. Why Na Is taken in excess in Lassigne's test?

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  7. What is TLV? Write one harmful effect of PAN?

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  8. Write two difference between orbit anoorbital. What difference will be...

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  9. Calculate wavelength of a photon having energy 1.2 ev. (1 ev = 1.601 x...

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  10. What in inner transition metal? Give one example of inert pair effect.

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  11. Define ionisation potential. State its change down a group.

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  12. How many sigma & pi bonds are there in propene molecule. State the hyb...

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  13. Dipole moment and bond length of A B type molecule are 7.42 D 2.04 ove...

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  14. State Grahams law of difussion from kinetic theory of gases. What do y...

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  15. Why the froth formed from Sea water is stable? Give the SI unit of Co-...

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  16. Discuss the conditions for spontaneity of a process .

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  17. Classify system. Give example of each kind.

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  18. Balance the equation by ion-electron method : Zn+ NaNO(3) + NaOH to...

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  19. Balance the equation by oxidation Number method: FeS2 + O2 rarr Fe2O3 ...

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  20. Discuss Clark process for softening water.

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