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Q. General Characteristics of elements of Group 13?
All the elements of Group 13 have similar valence shell electronic configuration of ns2np1, but the underlying core varies. For B and Al, it is the preceding noble gas core, for Ga and In, it is noble gas plus dl0 and for TI, noble gas plus 4f145d10. This variation in the electronic configuration of the core is also reflected in the ionisation energies of these elements and has a strong influence on their properties.
Tetracyclines: The tetracyclines consist of hydronapht-hacene skeleton like the characteristic structural unit. The structures of tetracycline are specified as follows,
I read that in the first transition series,the stability of +2 oxidation state decreases from Sc to Cu.but,I observed that as we move along the 3d -series,the stability increases i
Q. How to change in Oxidation Number in Redox Reactions? Ans. In reduction-oxidation, or redox, reactions, atoms undergo changes in their oxidation numbers. Consider th
The interionic attraction depends on interaction of: (1) Solute-Solute (2) Solvent-Solvent (3) The charges (4) Molecular proper
Properties of Bi-phenyl - Hydrocarbon Bi-phenyl is a colourless solid, melting point 71°C. It goes through usual electrophilic replacement reactions. As aryl set are electron w
What is differences by alkali metal and alkaine earth metal which provided colour
Resonance for the methyl group at room temperature The resonance for the methyl group at room temperature is a singlet. When the temperature is lowered, the resonance of this m
2p orbitals have : (1) n=1, l=2 (2) n=1, l=0 (3) n=2 l=1 (4)n=2, l=0 Ans: n=2 l=1
Alkyl halide on reaction with dry silver oxide
Why do Zr and Hf show similar properties?
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