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Iso-electronic species is:
(1) F-,O-2
(2) F-, O
(3) F-, O +
(4) F-, O+2
Ans: F-,O-2
Q. Why we need Sulfuring? Sulfuring is the process which is used to destroy microorganisms and to preserve colour. Fruits after blanching may be dipped into a sulphite solution
Explain classification of arches according to shapes raw a neat sketch of Flemish bond (1 brick wall and 1.5 brick wall thickness ).
Physical properties of dienes
Electro refining of Copper • Electrolyte - Aqueous copper sulphate solution (acidified) • Cathode - Pure copper metal (thin rod) • Anode - Impure copper metal (thick block) • Disso
Q. Illustrate Classification of Emulsions? Emulsions are classified as: • Oil-in-water emulsion: This is a colloidal dispersion in which droplets of oil are dispersed in
Write a list of reduction half reactions for... Fe, Fe+3 Cu, Cu+1 Pb, Pb+2
What is happen whenever H2SO4+HNO3 adding to the phenol.give the reaction Ans) Phenol + HNO3(in prescence of sulphuric acid) --> 2-nitrophenol + 4-nitrophenol.
Energy of electron of hydrogen atom in second Bohr orbit is: (1)-5.44x10 -19 j (2)- 5.44x10 -19 kj (3)-5.44x10 -19 cal
Q. How to calculate atomic mass of an element? Copper survive as a mixture of two isotopes. The lighter isotope (Cu-63) amid 29 protons and 34 neutrons makes up 69.17% of coppe
laws of chemical combination on report
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