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If the positional uncertainty of an elec...

If the positional uncertainty of an electron like particle be `5.6 xx 10^-7cm`.find its uncertianty in velocity.

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 10-EXERCISE
  1. Show that normal density = 0.089 xx Vapour density.

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  2. Calculate the energy of emr having wave'length 3000overset@A.

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  3. If the positional uncertainty of an electron like particle be 5.6 xx 1...

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  4. Which one of the following conditions will favour maximum formation of...

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  5. Give example of homogeneous & hetrogeneous equilibrium.

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  6. Is HCI cause hardness to water? What is the meaning 'Hardness is 300 p...

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  7. What is smog? State one harmful effect of N2O.

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  8. What are isodiaphers, Isotone & nuclear isomerism? Give example.

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  9. Which one has the highest paramanetic property and which one has least...

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  10. Find the position of the element having atomic number 24. In which blo...

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  11. What do you mean by Stair step diagonal? State its significance.

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  12. If the dipole moment and bond length of HF be 2.0 D and o.C.2A^@then f...

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  13. Explain why the viscosity and boiling point of H2SO4 is too high.Write...

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  14. What do you mean by surface tension? What is PI? How it is related wit...

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  15. What do you mean by enthalpy? Show that DeltaH= DeltaU + Delta nRT.

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  16. Define free energy. Comment for its change in a sponttaneous reaction.

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  17. Identify ABCD:A overset(Na) underset(LiqNH3)(rarr)B overset (CH3I)(rar...

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  18. If 4ml O2is obtained at 1.5atm pressure and 25^@C from 1 ml H2O2 sol...

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  19. How would you differch mically Na2CO3 & NaHCO3 which alkali metal form...

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  20. State the conditions of SN^2 reaction? What is I-effect?

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