Why is sulphuric acid added during the preparation of standard fas solution?
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Why does a white paper appear white, when light is not to fall on it ?
Why is the indicator eriochrome black(ebt) shows wine red color at the beginning and blue color at the end?
what is the name of the material used in making the plates used for serving food in hotels?
What is molar conductivity?
what is the indicator used?
Explain the Conversion of atmospheric Nitrogen to plant ?
What are constituents of brass?
What is positive testing in relation to chemistry? For example, the sentence reads "Sample solutions are solutions known to contain one of each of the following ions, silver ion, Ag+(aq), barium ion, Ba2+(aq), and iron (III) ion, Fe3+(aq). Testing solutions are the solutions containing a polyatomic ion that can react with one of the metal ions to give a positive test." I am then asked to define what a "positive test" is. I am currently a student who is pretty new to chemistry, please try and make your answer as simply as possible. Thanks for the help.
how will you jug that the give organic compound is pure or not ??????
What is the chemical formula of alum?
Define what is oxidation and reduction reaction?
Mention a few important criteria for satisfactory colorimetric analysis.