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What is aromatic hydrocarbon
Which of the following is not isoelectronic : (1) Na + (2) Mg 2+ (3) O 2- (4) Cl - Ans:(d)Cl -
What are ferrites? Ferrites are ceramic compounds containing trivalent metal having three valence electrons, iron and oxide of divalent element i.e. metals having two free ele
Bohr's model can explain : (1) The spectrum of hydrogen atom only (2) Spectrum of atom or ion containing one electron only (3) The spectrum of hydrogen molecule (4
The electronic configuration of copper (29 cu) is: (1)1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 , 3d 9 , 4s 2 (2) 1s 2 , 2s 2 , 2p 6, 3s 2 , 3p 6 , 3d 10 , 4s 1 (3) 1s 2 , 2s
Potassium permanganate is prepared from pyrolusite (MnO 2 ) . Pyrolusite is fused with KOH in the presence of atmospheric oxygen or an oxidising agent like potassium nitrate or po
what are atoms made of ?
Which of the following sets of quantum numbers represent an impossible arrangement: n l m m2 (1) 3 2 - 2 (+)
Following Hund's rule which element contains six unpaired electron: (1) Fe (2) Co (3) Ni (4) Cr Ans: Cr
what is inductomeric effect
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