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The energy required to dislodge electron from excited isolated H-atom, IE1= 13.6 eV is:
(1) = 13.6eV
(2) > 13.6eV
(3) < 13.6and > 3.4 eV
(4)≤ 3.4 eV
Ans: ≤ 3.4 eV
The radius of first Bohr's orbit for hydrogen is 0.53 Å. The radius of third Bohr's orbit would be: (1) 0.79 Å (2) 1.59 Å (3) 3.18 Å (4)4.77 Å
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Some of them show (S)-configuration at all their chiral centres. Illustrate their configurational formulae. If there is a meso-compound with this molecular formula illustrate it
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A water solution have 64% Na 2 S 2 O 2 together with 1.0% soluble impurity. Upon cooling to 5°C, Na 2 S 2 O 2 ·5H 2 O. crystallizes out. The solubility of this hydrate is 1.35
Description
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