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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 ns 2 np 1 , but the underlying core vari
Amines are soluble in organic solvents whereas ammonium salts are not. Is it true? Ans) yes because amine is contain R-NH2 group where R is carbon groups so they are in polar nat
Aluminium metal is frequently used as a reducing agent for the extraction of metals such as chromium, manganese etc. Explain why? Ans) Aluminium is an highly electropositive metal
what are the failure of octate rule
Which one is the electronic configuration of Fe +2 : (1) 1s 2, 2s 2 , 2p 6 , 3s 2 , 3p 6 , 3d 6 (2) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 4 , 4s 2 (3) 1s 2 , 2s 2 ,
Give Examples of steric effects These are both examples of steric effects. Placing three highly branched groups around a central boron results in van der Waals repulsions. Thes
The valency of phosphorus in H3 PO 4 is: (1) 2 (2) 5 (3) 4 (4) 1 Ans: 5
why do we add HCl in common ion effect of II froup
GROUP 12: ZINC, CADMIUM, AND MERCURY Group 12 substance have the electron design ( n -1) d 10 ns 2 with n =4, 5 and 6 for Zn, Cd and Hg, respectively. They are formally pa
the dug known as LSD has the formula C20H25N3O.one suspected sample contained 74.7%C,7.95%H,9.99%N.calculate the theoretical percentages to four significant figures
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