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Which of the following electronic configuration is not possible according to Hund's rule:
(1) 1s2 2s2
(2) 1s2 2s1
(3) 1s2 2s2 2p1x 2py1y 2p1x
(4) 1s2 2s2 2p2x
(5) 1s2 2s2 2p2x 2p1y 2p1z
Ans: 1s2 2s2 2p2x
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When 100ml of M/10 h2so4 is mixed with 500 ml of M/10 naoh then nature of resulting solution and normality of excess of reatant left is 1)Acidic,N/5 2)basic ,N/5 3)Acidic,N/20 3)ac
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1. A 50.0-L reaction vessel contains 1.00 mol N2, 3.00 mol H 2 , and 0.500 mol NH 3 . Will more ammonia, NH 3 , be formed or will it dissociate when the mixture goes to equilibrium
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Calculate the ratio of d number of molecules in two energy levels at 27''c given E2=9.75x10"-13erg/mol E1=6.95X10"-13erg/mol g1=2 g2=3
C
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