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Among all the isomers of pentane which h...

Among all the isomers of pentane which has the lowest boiling point ?

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It is due to decrease in `p pi- p pi` back bonding (of B-X bond) which decreases the electron deficiency of boron.
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ICSE-SELF ASSESSMENT PAPER 2-Questions
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  2. Name a compound whose empirical formula and molecular formula are equa...

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  3. Among all the isomers of pentane which has the lowest boiling point ?

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  4. What is the state of hybridisation of carbon atoms in benzene?

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  5. Arrange BF3, BCl3, B Br3, BI3 in the decreasing order of Lewis acid ch...

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  6. For what purpose are the black diamonds used ?

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  7. An tomic obital has n=3 , what are the possible values of l and m(l) ...

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  8. State the expression for Heisenberg.s uncertainty principle.

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  9. 0.400 g of chloroplatinate salt of a monoacid base on ignition gave 0....

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  10. 1.26 g of a dibasic acid were dissolved in water and the solution made...

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  11. Why do boron halides act as Lewis acids ?

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  12. Calculate the number of moles and number of molecules in 4.4 g of CO(2...

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  13. Write the IUPAC names of the following compounds:

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  14. Write the IUPAC names of the following compounds:

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  15. The hydroxides and carbonates of sodium and potassium are easily solub...

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  16. CH(3)-CH(2)-CH=CH-overset(O)overset(||)(C)-H

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  17. For the following bond cleavages, use curved-arrows to show that elect...

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  18. Draw the resonance structures for the following compounds. Show the el...

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  19. Draw the resonance structures for the following compounds. Show the el...

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  20. If the starting material for the manufacture of silicones is RSiCl(3),...

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