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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 we synthesis picric acid why it required 1 hour for the reaction with HNO3,H2SO4 and show the mechanism of picric acid and uses of picric acid. and what is the role of HNO3,H2S
which is the main postulate of bohr''s model of atom
what is the confirmatory test for acid radical(so42-)
An element L has 9 protons and valency 1. Another element M has valency 3 and 5. What is the difference in the number of electrons in L and M ?
what is chemical cobination
Differentiate soft magnetic material from hard magnetic material in respect of hysteresis losses, eddy current losses and domain wall motion with appropriate examples and plots.
how to find angles and areas with cos and tan
A moving particle may have wave motion, if: (1) Its mass is very high (2) Its velocity is negligible (3) Its mass is negligible (4) Its mass is very high and velocity
why is the isoelectric point of all amino acids not at ph 7 and what has the ionisable side chains got to do with it?
explanation
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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