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Q. Isolation and purification of metals? metals as a group of elements have acquired a unique importance in the modern world. However, nature' does not generally offer us metal
Perfluorocarbons (PFCs): Perfluorocarbons (C n F 2n+2 ) are acquired by controlled fluorination of vapourized alkanes diluted along with nitrogen gas in the existence of a cata
define ostwals dilution law
What was the calculated ?H value obtained for the reaction NH3 + HCl –› NH4Cl using the thermodynamic data in your lab procedure? The thermodynamic data is: •?H°f for NH3 (aq) = -
define explosive
How will you prepare carbolic acid from benzene
Following Hund's rule which element contains six unpaired electron: (1) Fe (2) Co (3) Ni (4) Cr Ans: Cr
AS THIS ALKALI METALS HAS LARGE SIZE AND LESS IONISATION ENERGY THEY LOSE THEIR OUTERMOST ELECTRON EASILY. PHOTOELECTRIC EFFECT MEANS EJECTION OF ELECTRONS FROM A METAL WHEN THEY
how a catalyst perform its work
Explain The bromonium ion The bromonium ion derived from the reaction of cyclopentene with bromine undergoes backside substitution by water to give the trans-bromohydrin, whic
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