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How many unpaired electrons are present in Ni2+ cation (atomic number = 28):
(1) 0
(2) 2
(3) 4
(4) 6
Ans: 2
If the velocity of hydrogen molecule is5*10^4 cm/sec tjen its de broglie wavelength is
The number of electrons that can be accommodated in dz 2 orbital: (1) 10 (2) 1 (3) 4 (4) 2 Ans: 2
Total number of unpaired electrons in an atom of atomic number 29 is: (1) 1 (2) 3 (3) 4 (4) 2 Ans: 1
Define Equilibrium with an Aqueous Phase? What are the values of C and F in systems consisting of solid AgCl in equilibrium with an aqueous phase containing H 2 O, Ag + (aq), C
The equation Δ x Δp ≥ h/ 4Π shows: (1) de-Broglie relation (2) Heisenberg's uncertainty principle (3) Aufbau principle (4) Hund's rule ans: Heisenberg'
An element has electronic configuration 2, 8, 18, 1. If its atomic weight is 63, then how many neutrons will be present in its nucleus: (1) 30 (2) 32 (3) 34
explanition
How do i balance the following equation: Ni+CO==>NI(CO)4? I can''t figure out the oxidation state of Ni and C on the product side.
1
on what basis basic radicals are separated into six groups ?
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