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Chromium has the electronic configuration 4s1 3d5rather than4s2, 3d4 because:
(1) 4s and 3d have the same energy
(2) 4s has a higher energy than 3d
(3)4s1 is more stable than 4s1
(4)4s1 3d5 half-filled is more stable than 4s2 3d4
Ans: 4s1 3d5 half-filled is more stable than 4s2 3d4
In this synthesis of indole the addition of keto thioether to choloroamine to give sulphonium ion. this reaction is carried out at low temperature . why?
The covalent bond produced by the unequal sharing of electrons among the two atoms is known as polar covalent bond.
character table symmetry element ammonia
Why does NO2 dimerise? a) Give an example of linkage isomerism. b) A solution of KOH hydrolyses CH3CH2CH2CH2Cl and CH3CH2CH2Cl. Which one of these is more easily hydrolysed?
There are two conditionfor foramtion of anions a) High Electron affinity b) Small size Less charge of an atoms form anion more simply
Solubility - Physical charterstics of monocarboxylic acids The lower most members of the aliphatic carboxylic acid family (upto C 4 ) are extensively soluble in water.
how to write a good lab report on conductometri titration?
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classification of organic chemistry
Vapour pressure of water at 293 k is 17.535mmHg calculate the vapour pressure of water at 293 k when 25g of glucose is dissolved in 450 g of water?
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