Related Questions;
Wednesday, March 16, 2022
Sodium chloride, when heated with conc. H 2 SO 4 and solid potassium dichromate gives : Chromyl Chloride test:
Sodium chloride, when heated with conc. H2SO4 and solid potassium dichromate gives chromyl chloride.
Related Questions:
(1) What is structure of sodium perborate?
What happene when KmnO4 strongly heated (573k)?
When potassium permanganate strongly then it converted into Magnate ions (Green colour) and MnO2 (Brown black).Ans also gives oxygen gas.
When hydrogen peroxide is added to acidified potassium dichromate, a blue colour is produced due to formation of....?
(A) CrO3
Hence option (C) is correct.
(B) Cr2O3
(C) CrO5
(D) CrO4^-2
Solution:
When acidified solution of K2Cr2O7 are shaken with H2O2 in presence of ether , the ethereal layer turn blue due to the formation of CrO5 ( deep blue in colour).
Buckminsterfullerene: Bucky Balls: Allotrope of Carbon:
Fullerenes are made by the heating of Graphite in an electrical arc in the presence of inert gases such as helium or argon. Fullerenes are the only pure form of carbon because they have smooth structure without having "Dangling" bonds. Fullelerenes are cage like molecules. C60 molecules has a shape like soccer ball and hence calles Buckminsterfullerene.
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