What is dextro-rotatory and levo-rotatory?
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What is the prime constituents of cement?
How is hardness of water caused?
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 does a rose appear black when the light of any other colour except red is made to fall on it ?
What is Liquation ?
Explain the difference between the Metals and Metallurgy ?
What is Atomic weight?
Why are substances like caustic soda and calcium chloride called hygroscopic substances ?
What will happen when a big piece of quick lime is dropped in water ?
What is meant by transmittance?
What is Evaporation ?
What are the electrodes used in potentiometer titration?