Explain acid gas?
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however ozone is havier than oxygen still ozone is up there in sky why?
who invented the first projector?
What is molality?
which gas is called laughing gas?
Arrange by acidic values : phenol, nitrotolouene and o-cresol?
What is Evaporation ?
What is Valency ?
What are the names of the three different rays emitted by radioactive substances ?
Why is ammonium hydroxide added to the brass solution?
Why is glass electrode called an ion selective electrode?
Difference between Physical and Chemical change ?
Which is the hottest part of a flame ?