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During a flame test why is calcium''s flame not persistent, while that of strontium is?
Ans) Because it does not have many ions as compared to the Strontium. It is the ions which produce color.
The hybradization state of the Fe among [Fe(CN)6]3-,[Fe(CO)5] and [Fe(H2O)6]2+ is Ans) D2SP3,DSP3,SP3D2
assignment of vbt
Formic acid is a weak acid along with a pKa of 3.75. Name of this comes through the Latin term "formica" ("ant") since it is extremely plentiful into the secretions of several spec
please tell the observation & inference, when ammonium phosphate (NH4)3PO4 undergoes charcoal cavity test & cobalt nitrate test.....
The number of electrons in [ 40 19 k ] -1 is: (1) 19 (2) 20 (3)18 (4)40 Ans: 40
how electrode potential through nernst equation can be determind/
what are the demerits of Bohr''s atomic model?
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In the industrial production of sulphuric acid, SO 3 is carefully reacted with water: SO 3 + H 2 O → H 2 SO 4 any excess SO 3 giving rise to what is called oleum, a solut
A first order reaction takes 69.3 minutes for 50% completion. Set up an equation for determining the time needed for 80% completion of this reaction.
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