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The configuration 1s 2 2s 2 2p 5 3s 1 shows: (1) Ground state of fluorine atom (2) Excited state of fluorine atom (3) Excited state of neon atom (4) Excited state
Which of the following sets of orbitals may degenerate : (1) 2s, 2p x , 2p y (2) 3s, 3p x , 3d xy (3) 1s, 2s, 3s
As compared to covalent compounds, electrovalent compounds generally have: (1) Low melting points and low boiling points (2) Low melting points and high boiling points (3
Correct statement is: (1) K=4s 1 , Cr= 3d 4 4s 2 , Cu= 3d 10 4s 2 (2) K=4s 2, Cr= 3d 4 4s 2 , Cu= 3d 10 4s 2 (3) K=4s 2 Cr= 3d 5 4s 1 , Cu= 3d 10
While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade?
Q. Show the characteristic baked flavour bread? Bread has its own characteristic baked flavour. This flavour diminishes with shelf life. A freshly baked bread would have intens
difference between lanthanoids and actanoids
A solution contains an unknown amount of osmium at the µg/g level, or below. Chemically pure osmium (Os) may be separated from the solution, but the chemical yields are variable an
Which of the following set of quantum numbers is possible: (1) n=3, l=2, m=2,and s = +1/2 (2) n=3, l=4, m=0,and s = -1/2 (3) n=3, l=2, m=2,and s = +1/2 (4
The mass number of an anion, X 3- is 14. If there are ten electrons in the anion, the number of neutrons in the nucleus of atom, X 2 of the element will be: (1) 10
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