what is the hardest metal in the universe
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In pickling process of titatium with HCL . how to know if the acid is not effective after pickling several batch. is there any test to know it. (not practically)
According to the definition of outer transition elements "Element having vacant or partially filled d- orbitals are outer transition", which element is not likely to be included in the outer transition elements????? a) Zn b) Hg c) Cd d) All of the above
what method would be used to soften water on a large scale?
why the second and third row transition metal containing d8 configuration, always fonming square planar complexes
Why ammonia is used as buffer solution in estimation of copper by EDTA method
what is the oxidation number for KMnO4?
I would like to know what is the equilibrium constant for the following reaction: 2CrO42- + 2H+ + 2H2O2 = CrO5 + 3 H2O If possible, a reference will be wellcome.
Define:minerals and ores
Why pH limited in between 1 to 14
How many moles of sodium hydrogen phosphate can be prepared from 3 mol of sodium hydroxide and phosphoric acid?
what are the types of chemical reactions?
I have interview in STL (Severn Trent), and I know that is a test in IQ, chemistry, Maths and english. So whoever know questions, please write.