Why is mercuric chloride added?
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Why is the indicator eriochrome black(ebt) shows wine red color at the beginning and blue color at the end?
While standing on railway platform and heating the whistle of an engine coming towards us , we hear the sound increasing; bit when the engine is receding from us it appears to fall why ?
Difference between an Atom and an Ion ?
A dynamite catridge struck in a rock makes the rock burst in being fired. How dies it happen ?
Explain the difference between the Metals and Metallurgy ?
Why does a pencil look cracked, when partly immersed in water ?
How is water purified on large scale, for drinking ?
Differentiate between organic and inorganic chemistry?
What is Acids, Bases salts ?
Which substance has the highest specific heat ?
What is the difference between hard and soft water ?
What causes smoke to curl up into the air ?