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Correct set of four quantum numbers for valence electron of rubidium (Z = 37) is: (1) 5,0,0,+1/2 (2) 5, 1,0,+1/2 (3) 5,1,1,+1/2
Number of unpaired electrons in inert gas is: (1) Zero (2) 8 (3) 4 (4) 18 Ans: Zero
If the velocity of hydrogen molecule is5*10^4 cm/sec tjen its de broglie wavelength is
#questionQ1. 0.28gm of CaCO3 was dissolved in HCl and the solution was made to one litre with distilled water. 100 ml of the above solution required 28 ml of EDTA solution on titra
The angle among the lines joining the nuclei of the bonded atom with a central atom is known as bond angle.
The energy of a photon is calculated by: (1) E= hv (2) h= Ev (3) h = E/v (4) E= h/v Ans: E= hv
In coordination compounds , how to decide whether itss hybridisation will be sp3d2 or d2sp3.. itss based on inner or outer orbital complex but how will we got to know that for ever
The elements of first transition series from variety of oxides of different oxidation states having general formulae MO, M 2 O 3 , M 3 O 6 , MO 2 , MO 3 . These oxides are gene
Phenol + HNO3(in prescence of sulphuric acid) --> 2-nitrophenol + 4-nitrophenol.
Number of unpaired electrons in Mn 4+ is: (1) 3 (2) 5 (3) 6 (4) 4 Ans: 3
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