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UNITED BOOK HOUSE-MODEL QUESTION PAPER 2-EXERCISE
- What are the characteristics of the transition elements and why are th...
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- Between Fe^2+ and Fe^3+ which is smaller in size?
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- ortho-nitrophenol is less soluble is water than p- and m-nitrophenols ...
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- Determine the number of sigma and pi bonds in sulphuric acid.
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- In case of CO3^(2-) ion,all the C-O bond lengths are equal explain.
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- Define co-ordination number.
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- Density of a gas is founded to be 5.46 g//dm^3 at 27^@C and at 2 bar p...
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- Critical temperature of NH3 and CO2 are 405.5 K and 304.10 K respectiv...
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- Calculate the standard enthalpy of reaction at25^@C temperature for th...
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- Calculate the entropy change, at 0^@C for the process H2O(s) rarr H2O(...
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- State the mathematical definition of enthalpy.
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- Mention the oxidation number of carbon atom in C6H12O6 molecule.
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- Balance the equations Cl2 + OH^(-) to Cl^(-) + ClO3^(-) + H2O
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- What is the oxidation number .of oxygen in Na2O2?
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- Balance . the following equation by oxidation number method : H2S + Cl...
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- What do you mean by ‘Non-stoichiometric hydrides'? Do you expect .this...
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- Which out of MgCO3, SrCO3 and BaCO3 possesses highest thermal stabilit...
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- Be and Mg do not give colour to flame whereas other alkaline earth met...
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- why are alkali metals stored in kerosene ?
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- What happens when calcium nitrate is heated.
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