Why is estimation of copper done at 620 nm wave length?
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Why dies thermos flask keep a hot liquid hot and a cold liquid cold ?
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Which is the main constituent in air ?
How many millilitre is equal to 1 litre and how many microliter is equal to litre?
Difference between heavy hydrogen , Atom Hydrogen and Hydrogen Ion ?
How to do acidity alkanity test ofsodium chloride
What is the difference between volumetric solutions and test solutions
How can fresh water be made from salt water ?
What is the reaction that occurring between fas and potassium dichromate?
what is difference b/w "regio selectivity" & "sterio selectivity"
In winter, on a cold morning, the cement feels colder to the foot than a carpet. Why ?
What is Distillation ?
Write the chemical formula for epsom salts?