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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.
what is the first maximum innaisation energy metal in s block
Calculate the ideal rM/rX ratio for cation-anion and anion-anion contacts of an octahedral arrangement of anions around a cation as show in one plane in the figure below.
name the smallest element that has all properties of an element
redox reaction of ethanal,caustic soda&copper hydroxide
The laboratory production of sulphuric acid involves the catalysed oxidation of sulphur in oxygen, followed by the separation of the resulting sulphur trioxide (SO 3 ) from sulphur
applications of photochemistry
preparation of bakelite
ionic bond has low energy
10 g of h2 and 64 g of o2 are filled in a steel vessel and exploded amount of water produced in this reaction
how to find out oxidation state?
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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