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=>K 2 MnF 6 + SbF 5 KSbF 6 +MnF 3 +F 2 which of the following is the stronger lewis acid? a)K 2 MnF 6 b)SbF 5 c)KSbF 6 d)MnF 3. =>what is the temperature at which alpha & beta sulphur exists simultaneously? a)289k b)369k c)396k d)419k.
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=>K2MnF6 + SbF5 KSbF6 +MnF3 +F2 • which of the following is the stronger lewis acid? • a)K2MnF6 • b)SbF5 • c)KSbF6 • d)MnF3
=>what is the temperature at which alpha & beta sulphur exists simultaneously? • a)289k • b)369k • c)396k • d)419k
=>what is the number of hydroxyl groups in the phosphorous(phosphonic)acid? • a)1 • b)2 • c)3 • d)none
STRUCTURE OF THE ACID • O • P • H OH • OH
=>why does sulphur in vapour state exhibit paramagnetic behaviour? • a)since sulphur exists as alpha sulphur • b)since sulphur exists as chain polymers called catena-Sn • c)since sulphur exists as S2 • d)since sulphur exists as S8
AMINO ACIDS • ISOELECTRIC POINT
There exists some topics which in general read by the student but these are such topics which one should not touch also.Such as: • ---------CFT • ---------EXTRACTION of some metals and compounds ,be always choosy only preparation is needed no cramming of temp. and pressures. • ----------INVENTORS of organomettalic and coordination compounds.
1.metals exhibits two types of linkages: • Primary-satisfying ions and have an oxidation state • Secondary-satisfying ions as well as neutral groups and have coordination number • 2.secondary linkages exhibit different spatial arrangement which is according to the coordination WERNER'S THOERY
Ligand theory • Weak and strong • CO > CN- >H2O>O-2>C204-2>OH->F->Cl->S-2>I-2 • INNER ORBITAL(d2sp3) • Strong ligands • OUTER ORBITAL(sp3d2) • Weak ligands
NAME OF THE COMPOUND • (with the formulae) • COLOUR • PREPARATION • ---------- • ----------- • PHYSICAL PROPERTIES • ------------------ • ------------------ • ----------------------- • CHEMICAL PROPERTIES • --------------------- • ---------------------- • MOLECULAR STRUCTURE
MOT • Two AO s combine to form two MO s. • Equal no. of bonding & antibonding orbitals are formed. • Bonding-have lesser energy Non boning – have higher energy Filling of electrons obeys Pauli’s exclusion principle.
MO with lowest energy is filled first. • Bond order= ½[Nb – Na] • Bond order may be fractional or zero. • Bond order bond dissociation energy 1/ bond length
MO of O2+ O - 8, O2+ - 15 (1s)2( *1s)2( 2s)2( *2s)2 ( 2px)2(2py)2 ( 2pz)2( *2py)1 BO = 1/2[10-5] = 2.5 unpaired electrons paramagnetic.
N2 (1s)2( *1s)2( 2s)2( *2s)2 (2py)2( 2pz)2( 2px)2
O P TANDON • NCERT • And one more book • It is • it is • it is BOOKS TO BE FOLLOWED