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Application of mesomeric effect
(A) Low reactivity of vinyl halides and aryl,
(B) The acidic behavior of carboxylic acids,
(C) Basic character comparison of aniline and ethylamine,
(D) The stability of few free carbanions, carbocations and radicals.
Bohr's radius can have: (1) Discrete values (2) +ve values (3) - ve values (4) Fractional values Ans: +ve values
(a) What is hardness of water? What do you understand by temporary and permanent hardness? OR Explain tempora
first law of crystallography
decreasing order of +M.E. group
Mesomeric forms are the possible locations of electrons at a single instant, if you get what I mean. Like, an adjacent double and single bond in a molecule. The resonance form, how
(a) Given the values below, Determine the concentration of benzoyl peroxide needed to prepare polystyrene with a number average molar mass of 400,000 by bulk free radical polymeris
The energy of a radiation of wavelength 8000 Å is E 1 and energy of a radiation of wavelength 16000 Å is E 2 . What is the relation between these two: (1) E 1 =6E 2
The maximum number of electrons that can be accommodated in a 3d subshell is: (1) 2 (2) 10 (3) 6 (4) 14 Ans: 10
Coordination Position Isomerism: If in a multinuclear complex the distribution of ligands around the metal centres changes it will result in a different isomer. Such an isomerism
The tallest living man today, as recorded, is Allam Chamna of Pakistan. He is 8 feet and 3 inches tall. What is his height in meter?
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