UNITED BOOK HOUSE-MODEL QUESTION PAPER 7-EXERCISE
- Show that if uncentainty in position and velocity are equal then uncer...
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- The shortest wavelength of H atom in Lyman series is x, then find the ...
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- Explain why PbCl4 is a good oxidising agent.
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- CO has both -oxidising and reducing property— explain.
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- What type of fission of a covalent bond products free radicals? Give a...
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- Write down the IUPAC name of the following compound:
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- Draw the structure of the following compound : 3, 4-dimethylpehtanoic ...
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- What is acid rain? How it effects on soil,vegetation and human health?
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- Why electronic energy is negative?
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- What do you understand by stationary state? Does an electron remain st...
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- Atomic radius of chlorine atom is0.99 overset@A but ionic radius of ch...
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- State the group number in the modern periodic table where solid, liqui...
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- Arrange Mg, Al, Si and Na in the increasing order of their ionisation ...
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- Arrange according to the directions : Sb2O3, N2O5, AS2O3 (Increasing ...
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- Arrange according to the directions : B— CI, Ba— CI, Br— CI, CI— CI (...
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- In certain polar solvent, PCl5 undergoes ionisation as follows: 2PCl5 ...
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- Give an example, of intramolecular hydrogen bonding.
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- Bond angel of H2O is greater than H2S— Explain.Explain, ammonia is mor...
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- Out of SF(6) and SC l(2), S has highe electronegativity in which of th...
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- Arrange CO2, SO2 and NO2 gases in increasing order of their rates of d...
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