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Pauli's exclusion principle states that :
(1) Nucleus of an atom contains no negative charge
(2) Electrons move in circular orbits around the nucleus
(3) Electrons occupy orbitals of lowest energy
(4) All the four quantum numbers of two electrons in an atom cannot be equal
Ans: All the four quantum numbers of two electrons in an atom cannot be equal
The number of unpaired electrons in nitrogen is: (1) 1 (2) 3 (3) 2 (4) None of these Ans: 3
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2. Oxalic acid is a diprotic acid with the following deprotonation equilibria. A. You have 150 ml of a solution of pure oxalic acid with an unknown concentration.
Addition catalysed by base - Aldehydes and Ketones In the existence of a base one equivalent of an alcohol reacts along with only one equivalent of the carbonyl compound. The p
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