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An ion has 18 electrons in the outermost shell, it is:
(1) Cu+
(2) Th4+
(3) Cs+
(4) K+
Ans: Cu+
The ground state term symbol for an electronic state is governed by : (1) Heisenberg's principle (2) Hund's rule (3) Aufbau principle (4) Pauli exclusion principle
Amines are soluble in organic solvents whereas ammonium salts are not. Is it true? Ans) yes because amine is contain R-NH2 group where R is carbon groups so they are in polar nat
The electronic structure of four elements A, B, C, D are: (1) 1s 2 (2) 1s 2 , 2s 2, 2p 2 , (3) 1s 2, 2s 2 , 2p 5 ,
What are the limitations of valence bond theory?
A useful model of interfacial mass transport makes three assumptions: (i) there is a difference between the concentrations of A at the interface, C A denoted C A in Phases I
How to find the atomicity of an element
How can we make best use of marigold flowers
Soaps - Oils and fats Soaps are the metallic salts of higher fatty acids like stearic, palmitic, oleic, etc. The potassium and sodium salts are the common soaps that are solubl
What is Banana bond? Diborane contains how many banana bonds Ans) In Diborane B-H-B, bridge, which is produced by the sharing of two electrons, is known as banana bond or Tau bo
Diagonal relationship between Be and Al
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