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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.
Which one of the following is not isoelectronic with O 2- : (1) N- 3 (2) F - (3) Tl + (4) Na + Ans: Tl +
scales and sludges
Q. Name of the reagent required for determination of hardness of water sample of complex metric method. Briefly give the function of each reagent used. Ans. Reagents requir
A 10L helium balloon at a pressure of two bar at 27C. Some O 2 is now inside in balloon and final volume is made 30L. the pressure also fell to 1 bar at similar temperature. the p
Limitations of second law of thermodynamics
reactions
order
Neoprene (GR: or Polychloroprene or Dupe) Preparation: Neoprene is prepared by the free radical polymerisation of chloroprene in an emulsion system. Starting materials are ac
Cross linked polymers : 1. These are polymers where monomers unit are crosslinked together to make a three dimensional network polymers. 2. These kind of polymers are hard,
Solid CH 4 is: (1) Molecular solid (2) Ionic solid (3) Pseudo solid (4) Does not exist Ans: Molecular solid
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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