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For cations build from metals in early groups in the periodic table the complexing strength with halide ions follows the sequence
whereas with many post-transition metals and some later transition metals the reverse sequence is found (e.g. Pt2+, Hg2 +, Pb2+;). The former behavior is known as the latter as class b and class a behavior, and the difference is an example of soft and hard properties, respectively. Class b ions form rigid complexes with ligands such as ammonia, which are lighter than water, whereas class a ions do not complex with such ligands appreciably in water.
Which one is most stable form of 1,3 Di tertiary butyl cyclohexane?
Free-radical mechanism: Free-radical polymerisation is started by organic peroxide or other reagents that decompose to give free radicals.
A3p orbital has: (1) Two spherical nodes (2) Two non-spherical nodes (3) One spherical and one non-spherical nodes (4)One spherical and two non-spherical nodes A
sources of errors in thermogravimetry
Which one of the following is not isoelectronic with O 2- : (1) N- 3 (2) F - (3) Tl + (4) Na + Ans: Tl +
complete reaction
What is anionic intermediate The spectrum is consistent with the formation of an anionic intermediate-a stable Meisenheimer complex. (The dotted lines symbolize resonance delo
Consider the ground state of(Z= 24) . The numbers of electrons with the azimuthal quantum numbers,l=1 and 2 are, respectively: (1) 16 and 4 (2) 12 and 5
The determination of k is not a strait forward exercise. Model it from first principles using Bernoulli's equation would produce a square root relationship and would probably have
Ask question #Minimum 100 words acceWhen an electron beam strikes a block of copper, x-rays of frequency 1.07 x 10 19 Hz are emitted. What is the wavelength of these x-rays?pted#
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