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Chromium has the electronic configuration 4s1 3d5rather than4s2, 3d4 because:
(1) 4s and 3d have the same energy
(2) 4s has a higher energy than 3d
(3)4s1 is more stable than 4s1
(4)4s1 3d5 half-filled is more stable than 4s2 3d4
Ans: 4s1 3d5 half-filled is more stable than 4s2 3d4
Dual nature of particles was proposed by: (1) Heisenberg (2) Lowry (3) de-Broglie (4) Schrodinger Ans:de-Broglie
volatile liquid is placed in a open container for 15 minutes should you expect its mas to
Initially 5 mol of an ideal gas with Cv,m=12.5 J K^-1 mol^-1 are at a volume of 5 dm^3 and a temperature of 300K. If the gas is heated to 373 K and the volume changed to 10 dm^3, w
Lowest set of locants - IUPAC system of nomenclature while two or more substituents are present, then end of the parent chain that provides the lowest set of the locants is pre
Electrolytes are compound containing: (1) Electrovalent bond (2) Covalent bond (3) Coordinate bond (4) Hydrogen bond Ans: Electrovalent bond
e
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