who invented the first projector?
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What is weak acid?
Which element is nether a solid nor a liquid?
Difference between heavy hydrogen , Atom Hydrogen and Hydrogen Ion ?
Arrange by acidic values : phenol, nitrotolouene and o-cresol?
Why is ammonia solution added while preparing edta solution?
What is water gas ?
What is protein - according to chemistry?
What important property of water makes it possible for plants to grow under it and for animals to live it ?
Do all explosions produce carbon dioxide or carbon monoxide?
What is titration?
Which element is liquid at ordinary temperature ?
What is produced, when carbon is burnt ?