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The color in KMnO4 arises from an electronic transition, but it is actually not a d-d ... When the light is reflected (or transmitted) it is missing the frequencies of the light absorbed, and so it looks pink.
how many group of acid radicals
Electronegativity may be described as the power of an atom to attract electrons to itself in a chemical bond. It is the most important chemical parameter in calculating the type of
s block
construction and working of secondary cell
Which is the most covalent: (1) C- O (2) C- Br (3) C- S (4) C-F A
advantages
free energy and spontaeity
Illustrate the salient aspects of ionic and metallic bonded crystals. Properties Ionic Metallic Bonding Force The
importance of a heat exchanger in a chemical process and mention the different types of heat exchangers
Q. Chemical Properties of group16? Oxygen is slightly less reactive than the halogens but reacts directly with nearly all the elements except the noble gases, the halogens and
Mostly compounds of d block elements exibitcolour dueto d-d transistions between partially filled eg and t2gbut the reason for colour of KmnO4 and K2Cr2O7 is due to partial chanrge transfer between central atom and oxygen which causes colour
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