What are the names of the three different rays emitted by
radioactive substances ?
What is iron ore consists of?
What is kentchin? Is it real? As much info on it as possible.
how will you jug that the give organic compound is pure or not ??????
Mention a few application of cod test in environmental engineering practice.
What is a potentiometer titration?
Is air mixture or compound ?
What is meant by amalgam ?
why bottles of Hazardous chemicals or solvent are available in round shaped only?
However ozone is heavier than oxygen still ozone is up there in sky why?
Explain the Modes of valency ?
who is the king of chemistry?
What is gas-filled lamp ?