Which wavelengths are visible to human eye?
Acid value definition is number milligrams of koh required to nuetralise the acid present in one gram oil & fats but why not use naoh for nuetralisation?
What is the reaction that occurring between fas and potassium dichromate?
Why is the color of the indicator drop remains the same at the end point?
What is a potentiometer titration?
Do all explosions produce carbon dioxide or carbon monoxide?
Why ph scale range is 14? Why it is not less or not greater than 14?
What is wave length?
What is mineral water?
Explain the structure of a dna molecule?
Give the others form of iron ore.
Which is the best conductor of electricity?
What makes a molecule into organic molecule?
Give the principle of potentiometer titration.
How are the waters classified based on the degree of hardness?