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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 determine the qualitativ and quantitativ analysis of uv
why does evaporation causes cooling
Q. What are the requirements of drinking water? Explain various methods used for the sterilization of water for municipal supply. ANS. Requirements of drinking water: The e
In nitromethane N-O bondlength is 1.21A° while normal N-O bondlength is 1.36 A° and for N=O it is 1.18A°..Explain why
Nucleophilic aromatic substitution is possible, but involves substitution of a typical leaving group rather than a hydrogen atom. Remembering that S N 2 and S N 1 mechanisms are no
Natural gas, which we can assume is 100% methane, is combusted to generate electricity at a power plant. This is becoming increasingly popular as an NGCC process (Natural Gas Comb
find H^+ concentration if Ph=4.90
calculate the volume occupied by 10000000000000000000000 molecules of a gas at 300 K & 760 mm pressure
Q. What do you mean by Isotopes? Isotopes and mass number although all atoms of an element have the same number of protons most elements have atoms with different numbers of ne
why is filtration in soil and water a slow process and explain the colour change in the filtrate
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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