Explain extraction of ephedrine from a mineral block?
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why bottles of Hazardous chemicals or solvent are available in round shaped only?
A balloon constructed in Calcutta during July-August was found to show cracks at most wooden joints when received at Ferozepore in December. What is the probable cause ?
Which gas is used in bulbus ?
Why is ammonia added? Why is that same amount of ammonia added?
What is the composition of stainless steel ?
What is the unit of conductance?
Explain the Modern Atomic Theory ?
What general group of organic compounds are not oxidesied in the cod test?
What causes smoke to curl up into the air ?
How is food preserved ?
Why does a match-stick burn, when struck against the match-box surface
What is the chemical composition of diamond ?