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Why is aqueous solution of borax alkalin...

Why is aqueous solution of borax alkaline ?

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UNITED BOOK HOUSE-QUESTION PAPER 2018-EXAMPLE
  1. State Heisenberg uncertainly principle . What is the shape of s orbita...

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  2. Explain why SiCl4. undergoes hydrolysis readily.

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  3. Why is aqueous solution of borax alkaline ?

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  4. Which reagent is called anmelectrophile in organic reation? write with...

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  5. Write the IUPAC names of the compounds CH2=CHCH2CH2C=CH and CH3CH=CH...

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  6. Mention two causes of soil pollution .

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  7. How does the increase in the amount of CO2 in the atmosphere lead to g...

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  8. Write with an example the condition for two atoms tom be considered as...

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  9. "26Fe^(3+) is more stable than Fe^(2+). Explain why? Which is more par...

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  10. What are the quantum numbers by which an electron in an atom can be de...

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  11. What is the maximum number of quantum number that may be the same for ...

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  12. The outermost electrons configuration of the atom of an elements is 3s...

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  13. Why is electrons gain enthalpy of oxygen less than that of sulphur ?

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  14. Show by drawing its molecular orbital diagram why O2 is paramagnetic.

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  15. Draw the canonicals of CO3^(-2).

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  16. Why is boiling point of H2O grater than that of H2S?

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  17. State Gay Lussac's law related to pressure and temperature of a gas. 3...

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  18. Determine the volume of 2*2 g of caabon dioxide at 27^@C and 570 mm Hg...

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  19. State Hess' law.

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  20. For the following reaction at 298K 2X + Y rarr Z DeltaH = 300 kj m...

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