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Correct configuration of Fe+3 [26] is:
(1) 1s2, 2s2, 2p6, 3s2, 3p6, 3d5
(2) 1s2, 2s2, sp6, 3s2, 3p6, 3d3, 4s2
(3) 1s2, 2s2, 2p6, 3s2, 3p6, 3d6, 4s2,
(4) 1s2, 2s2, 2p6, 3s2, 3p6, 4s1
Ans: 1s2, 2s2, 2p6, 3s2, 3p6, 3d5
The mass of CaCl2 (molar mass= 111.0) required to prepare 75.00 milliliters of a 2.000 molar solution of this salt is?
why ionisation energy of aluminium is greater then Ga?
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The maximum number of electrons that can be accommodated in a 3d subshell is: (1) 2 (2) 10 (3) 6 (4) 14 Ans: 10
A reverse osmosis membrane is used to desalinate high salinity groundwater. It is proposed to build an RO plant that will process about 500,000 liters/day of saline feed water cont
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A completely filled d -orbital ( d 10 ): (1) Spherically symmetrical (2) Has octahedral symmetry (3) Has tetrahedral symmetry (4) Depends on the atom Ans: Spherical
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