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what are comis salts .
An isostere is: (1) NO -2 and O 3 (2) No -2 and PO 3- 4 (3) CO 2, N 2 O, NO - 3 (4)Clo - 4 and OCN - Ans: NO -2
An ion has 18 electrons in the outermost shell, it is: (1) Cu + (2) Th 4+ (3) Cs + (4) K + Ans
Q. What do you mean by nucleus of the atom? The nucleus of an atom for the reason that atoms have no net electrical charge scientists reasoned that if an atom contains particle
Why the density of carbonylcompounds is as same as water?
Q. Define standard reduction potential ? Ans. The standard reduction potential, E o As we have seen in the example of a chemical cell in the previous section, the redox rea
Which one of the following is not isoelectronic with O 2- : (1) N- 3 (2) F - (3) Tl + (4) Na + Ans: Tl +
de-Broglie equation is: (1) n γ= 2d sin θ (2) E= hv (3) E= mc 2 (4) γ= h/ mv Ans: γ= h/ mv
molecular weight of orthophosphoric acid is M.Its equivalent weight
in borontriiodide distance between two I atoms is found to be 3.54. if radius of covalent bonded I atom is 1.33. what is covalent radius of boron
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