What is si unit of viscosity-coefficient?
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Distinguish between flannel and flannelette ?
What is Acids, Bases salts ?
Why is acetone used for cleaning viscometer?
Why does the snow on the mountains not melt all at once, not changed into water very slowly?
Why are leaves of trees green ?
Explain the Matter?
Why is the color of the indicator drop remains the same at the end point?
Why a hot day in Calcutta causes more discomfort than are equally hot day in Delhi ?
When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason????????? When a cool glass rod is suudenly heatd, it cracks. Why?????????
What is molar conductivity?
is urea addition affecting the COD (chemical oxygen demand) & BOD (Biological oxygen demand)level? why?
However ozone is heavier than oxygen still ozone is up there in sky why?