However ozone is heavier than oxygen still ozone is up there in sky why?
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Why is the bottom of a kettle blackened and top polished?
What do you mean by UV cut off limit
How is librated iodine estimated?
Explain the Hard and Soft water ?
What is the function of diethyl amine?
Explain about Graham?s law of Diffusion ?
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?
Why metallic tools used by blacksmiths have wooden handles ?
What is Acidity of a base ?
Why is salt thrown on the frozen road ?
in Einstein's mass energy relation e=mc2 for what is c used or why is light required for reactions. Because the reactions are with help of neutrons
why bottles of Hazardous chemicals or solvent are available in round shaped only?