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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
diagonal relationships
Li + H20 ----> LiOH + H2....if I start with 3.4 mols of H2O , how many mols of H2 can I make?
Lassaigne method This is employed to detect halogen, nitrogen and sulphur. Organic compounds are fused along with dry sodium in a fusion-tube and fused mass after extraction wi
The covalency of nitrogen in HNO 3 is: (1) 0 (2) 3 (3) 4 (4) 5 Ans: 5
The electrons would go to lower energy levels first and then to higher energy levels according to which of the following: (1) Aufbau principle (2) Pauli's exclusion princip
Among the bonds formed by a chlorine atom with atoms of hydrogen, chlorine, sodium and carbon, the strongest bond is formed between (1) H- cl
The p-block elements contain metals amd what?
diagonal relationship between boron and silicon
Q. Evaluate the gold number of A? The coagulation of 100 mL of colloidal sol. is completely prevented by adding 0.25g of a protective colloid 'A' to it before adding 1 mL of Na
Consult the inside front cover of the text for a list of common functional groups. (a) nitrile (b) ether
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