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The number of electrons in [ 40 19 k ] -1 is: (1) 19 (2) 20 (3)18 (4)40 Ans: 40
The number of unpaired electrons in 1s 2 2s 2 2p 4 is: (1) 4 (2) 2 (3) 0 (4) 1 Ans: 2
Which of the following has the least energy: (1) 2p (2) 3p (3) 2s (4) 4d Ans: 2s
WRITE HALF-REACTION FOR THE REDOX Fe2+ + MnO4- =Fe3+ + Mn2+
Alkane is a organic compound which having single bond between c-c i.e alkane is a saturated compound.
procedure and curves for radiometric titration
Q. Explain important properties of energy? Properties of Energy There are two important laws that explain the important properties of energy: Conservation of Energy (
while gibing the ph and the volume intial and final how do we calculate the number of moles
Q. Transition elements of the f-block? The salient features of the chemistry of the transition elements of the f-block. Due to filling of electrons in the f-orbitals of an inne
diagonal relationship between boron and silicon
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