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Explain heat of formation
Although both molecules have bridgehead double bonds, the double bond in compound B is more twisted, and a model of this molecule is more complex to build. Consequently, compound B is less stable and thus would have the greater (more positive or less negative) heat of formation.
If hydrogen atom is in an energy level represented by n=4,how many spectral lines are possible in its emission spectrum? Ans) There is a formula for this i.e [ (n 2- n 1 +1)
explain the scale and sludge formation?
(a) How is aniline obtained from benzene? (b) Why are the secondary amines more basic than primary amines? Describe. (c) Write the complete chemical reactions for the convers
This cycloaddition reaction involves sixteen electrons; hence, it must be suprafacial on one component and antarafacial on the other. Thus, it must be a [14s + 2a] or a [14a + 2s]
387 J/Kg. C or 0.0924 Cal/g.C
Which of the following set of quantum number is not valid: (1) n=1, l=2 (2) 3=2, m=1 (3) m=3,l=0 (4) 3=4,l=2
Tritium is the isotope of: (1) Hydrogen (2) Oxygen (3) Carbon (4)Sulpher Ans: Hydrogen
external treatment of hard water? Demineralisation of British water
Trans -Isomer of a substance is more stable than Cis-Isomer.
how many methods to remove color impurities in chemical compounds?
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