which gas is called laughing gas?
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How can you mark your name on a glass plate by a simple chemical method ?
i pass my B.Sc. in 1999(chemistry. i dont understand what study after bsc. i am an average student.After my Bsc i joint my brother factory and i work there as a production, QC and electrical testing for Oil. i try to another job but my exprince not match my education co u tale me what i do.
What are filters? Why are they used?
What is specific conductivity?
Give the others form of iron ore.
Why metallic tools used by blacksmiths have wooden handles ?
What is Refractory Materials?
What is the min constitutes of haematite ore?
What is photoelectric colorimeter?
Why is the total eclipse of the earth a rare phenomenon ?
Why Nitric acid can be stored in Aluminium containers?
Explain the Modes of valency ?