Which wavelengths are visible to human eye?
why is their exotherm while addition of reducing agents in reduction reaction?
Mention a few important criteria for satisfactory colorimetric analysis.
What is the difference between fractionation and distillation?
Explain acid gas?
What is modern definition(iupac) of ph?
Why is disodium salt of edta preferred to edta?
What is buffer?
explain sour gas?
What are the electrodes used in potentiometer titration?
However ozone is heavier than oxygen still ozone is up there in sky why?
What is si unit of viscosity-coefficient?
What is weak acid?
What is the role of stannous chloride?
Why USP put two methods for tapped density? When I should use each one?