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If an electron has spin quantum number of +1/2 and a magnetic quantum number of -1 , it cannot be presented in an:
(1) d -orbital
(2) f -orbital
(3) p -orbital
(4)s-orbital
Ans: s-orbital
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The enthalpy change (ΔH) in a reaction is equal to the heat input under conditions of constant pressure and temperature. It is not equal to the total energy change, as work may be
Delocalisation of electrons in conjugated system is called resonance. For example there is delocalisation of electrons in benzene ,hence we write kekule structure for benzen.
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We have seen that different metal/metal ion combinations have different values of electrode potentials. The various elements can be arranged in order of increasing or decreasing va
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