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The electron density between 1s and 2s orbital is:
(1) High
(2) Low
(3) Zero
(4)None of these
Ans:Zero
the law of multiple proportion
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The ratio of the energy of a photon of 2000Å wavelength radiation to that of 4000 Å radiation is: (1) 1/4 (2) 4 (3) 1/2 (4) 2 Ans
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