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UNITED BOOK HOUSE-MODEL QUESTION PAPER 5-EXERCISE
- AlCl(3) forms a dimer but BC l(3) cannot-explain.
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- Write the IUPAC name for the following Compound:-
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- What is ozone hole? What are the causes of fomration of ozone hole? Di...
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- State the postulates of Bohr's model of hydrogen atom .
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- State the difference of Rutherford & Bohrmodel
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- All transitional elements are d-block but the reverse is not true Expl...
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- Compare the bond angle of the molecules NH3 H2O and CH4. Which theory ...
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- State the hybridisation and structure of the molecule SF6, PCI5 & SiCl...
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- Write two differences between Real & Ideal gas. What is partial pressu...
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- Define surface tension of a liquid. What do you mean by viscosity of a...
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- The standard heat of formation of C6 H5 COOH (s) CO2 (g) & H2 O (1) at...
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- Establish DeltaG = DeltaH- TDeltaS.
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- What do you mean by oxidation number determine the oxidation no of * m...
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- What is heavy water? Why is it so called?
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- Calculate the hardness of water in ppm. when 10 gm MgCl2 and 15 gm Cal...
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- Why are alkali metals not found in nature?
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- Give example of elemination and addition reaction in organic Chemistry...
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- State La-Chatteler principle. What is active mass? How it is measure? ...
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- Explain what will happen if the reaction below is treated in open & cl...
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- What is pH of a solution? Is the neutral pH at higher temperature be l...
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