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What is the electronic configuration of Cu2+ (Z= 29) of least position:
(1) [Ar]4s1 3d8
(2) [Ar]4s2, 3d10 4p1
(3) [Ar]4s1 3d10
(4) [Ar]3s9
Ans: [Ar]3s9
What is hydrometallurgy
Aufbau principle is not satisfied by: (1) Cr and Cl (2) Cu and Ag (3) Cr and Mg (4) Cu and Na Ans: Cu and Ag
Correct configuration of Fe +3 [26] is: (1) 1s 2 , 2s 2 , 2p 6, 3s 2, 3p 6 , 3d5 (2) 1s 2 , 2s 2, sp 6 , 3s 2 , 3p 6 , 3d 3 , 4s 2 (3) 1s 2 , 2s 2 , 2p
20ml of water sample requires 15ml of 0.1mg/l sodium carbonate using phenolphthalein indicator. state the type of acidity and calculate the acidity
how can we calculate it?
maximum no of unpaired electrons a)mn2+ b)ti3+ c)v3+ d)fe2+
its important topics for class 11th
Test of proteins - Xanthoproteic test Xanthoproteic test : A few proteins give yellow colour along with concentrated nitric acid (formation of yellow stains on fingers when wor
what is oxidation?
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