UNITED BOOK HOUSE-MODEL QUESTION PAPER 11-EXERCISE
- What is stone Cancer.
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- Calculate the energy of 1 Millimole of photon having wavelength 405nm
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- Calculate the radius of the 3^(rd) orbit in which electron has the vel...
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- Arrange the following oxides as per their increasing order of acidic n...
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- Arrange the element as per increasing electronegativity O, Te, Se, S. ...
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- Why the boiling point of NH3 is higher than that of PH3? Give an examp...
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- Why the bond length of BF3 is less than that of BF4? Find the hybridi,...
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- Calculate th r.m.s. velocities of CO2 at 27^@C. Show that C(rms) =sqrt...
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- Why the rain drops are spherical? Why the surface-tension of pb is hig...
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- Calculate the enthalpy for the reaction at 27^0C. C2 H5 Cl (s) rarr C...
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- Calculate Delta H-DeltaU at 25^@C for the reaction:H2(g)+( 1/2)O2(g) =...
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- What is the oxidation number of Mn in K2 Mn O4?
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- Calculate the oxidation no of * marked atom:*Fe (CO)5
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- Balance the equation by oxidation no method :AI + NaOH + H2O rarr NaAl...
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- Balance by oxidation number method P4 +NaOH + H2O rarr NaH2 PO2 + PH3...
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- What do you mean by Interstitial and non stoichiometric hydrides? Give...
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- Why K2 CO3 can’t be prepared by solvey process? What is backing soda?
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- What is carbene? How many types of carbene present? Give example.
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- 2AB2 (g) = 2AB (g) + B2 (g) if the degree of dissociation and total pr...
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- Calculate the pH 0.01 (m) ch3COOH at 25^@C. (Given dissociation con...
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