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The third line in Balmer series corresponds to an electronic transition between which Bohr's orbits in hydrogen: (1) 5 → 3 (2) 5 → 2 (3) 4→ 3
Q. Show the Halides of Aluminium? All the four trihalides of aluminium, i.e. AIF 3 , AICI 3 ,, AlBr 3 , and AlI 3 , are known. AIF 3 , is made by treating Al 2 0 3 with HF ga
Existence of positively charged nucleus was established by: (1) Positive ray analysis (2) α -ray scattering experiments () X-ray analysis (4) Discharge tube exper
For which of the following sets of four quantum numbers, an electron will have the highest energy: n l m s
Styrene rubber (GR-S or Buna-S or SBR or Ameripol): Styrene butadiene rubber (SBR) is prepared by the copolymerization of butadiene (75%) and styrene (25%) in an emulsion styrene
Important reaction
1. A 50.0-L reaction vessel contains 1.00 mol N2, 3.00 mol H 2 , and 0.500 mol NH 3 . Will more ammonia, NH 3 , be formed or will it dissociate when the mixture goes to equilibrium
Co-ordination covalent bond is produced by the mutual sharing of pair of electrons among two atoms contributed by only one of the combining atoms.
an elementary idea of crystal field theory
If magnetic quantum number of a given atom represented by -3, then what will be its principal quantum number: (1) 2 (2) 3 (3) 4 (4
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