What makes a molecule into organic molecule?
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What is flash point ?
Why and how is short-circuit caused ?
Explain substituted hydrocarbon?
What is the acidity of a base
Why dies the water boil below 100 o C on the top of a mountain ?
Explain the Matter?
explain sour gas?
what is the valence of nitrogen?
In winter, on a cold morning, the cement feels colder to the foot than a carpet. Why ?
If you are given two liquids, which look like water, how can you, by two physical tests, prove which one of them may be water ?
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 ?
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?