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Method for Detection of Elements - Phosphorus
Phosphorus is detected through fusing the organic compound along with sodium peroxide while phosphorus is converted into sodium phosphate. 2P + 5Na2O2→2Na3PO4 +2Na2O. The fused mass is extracted with H2O, boiled with conc. HNO3 and after that ammonium molybdate is included. Presence of yellow ppt. or colouration because of the formation of ammonium phosphomolybdate points out the presence of phosphorus.
The quantum number which specifies the location of an electron as well as energy is : (1) Principal quantum number (2) Azimuthal quantum number (3) Spin quantum number
de-Broglie equation is: (1) n γ= 2d sin θ (2) E= hv (3) E= mc 2 (4) γ= h/ mv Ans: γ= h/ mv
Uses of Sucrose, Cane-sugar (1) Sucrose is used as a sweetening substance for several jams, syrups sweets, food preparations etc. (2) Sucrose is used in the making of sucros
How many unpaired electrons in Fe (II)?
how can i make a project work on it?
Piezoelectric effect is the production of electricity by?? Piezoelectric effect is the forming of electricity by pressure.
Chemical characterstics of carbonyl compounds Carbonyl compounds provide chemical reactions due to carbonyl group and α-hydrogens. Carbonyl compounds' Chemical reactions can
Till 20elememts write the no of electrons in outermost shell.if less than 4 then this is the valency otherwise subtract from 8
Molten sodium chloride conducts electricity due to the presence of: (1) Free electrons (2) Free ions (3) Free molecules (4) Atoms of sodium and chlorine Ans: Free
the name of the group of metals that easily loses electrons
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