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Aufbau principle is obeyed in which of the following electronic configurations:
(1) 1s2 2s2 2p6
(2) 1s2 3p6 3s2
(3) 1s2 3s2 3p6
(4) 1s2 2s2 3s2
ans: 1s2 2s2 2p6
Nitrogen has the electronic configuration 1s 2 , 2s 2 , 2p 1 x , 2p 1 y , 2 p 1 z and not 1s 2 , 2s 2 , 2p 2 x , 2p 1 y , 2 p 0 z which is determined by: (1) Aufb
Metallurgical Rate Phenomena
The emission spectrum of hydrogen is found to satisfy the expression for the energy change. teiangle E (in joules) such thatTriangle E= 2.18x10(1/n 2 1 - 1/ n 2 1 ) J where n
a) Give a chemical test to distinguish between aniline and N-methyl aniline. Draw the structure of XeF2 molecule. b. Write the outer electronic configuration of Cr atom (Z =
when these are combined...what do they make? And what is it used for?
The number of electrons and neutrons of an element is 18 and 20 respectively. Its mass number is: (1) 17 (2) 37 (3)2 (4)38 Ans: 17
why only phosphate is used for intrnal conditioning???
Why is zinc is not extracted from zinc oxide through reduction with CO? Solution) Reducing agent should have more negative ΔG value. In case of zinc oxide ,Zn has more negativ
what is wurtz reaction?
Basic dyes: These types of dyes are the hydrochlorides or zinc chloride salts of colour bases comprising basic group sets. These dyes act along with anionic sites available on
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