Hydrogen is a colourless, odourless and tasteless gas.
At standard temperature and pressure, hydrogen is a colorless, odorless, and tasteless gas
On adding acetic acid to soild sodium hydrogen carbonate, a student observes the liberation of a (A) greenish yellow gas with pungent smell. (b) colourless and odourless gas.(C) yellow coloured, odourless gas, (d) colourless gas with smell of rotten eggs.
what do you mean by brisk effervescence?
Are hydrogen and co2, both odourless and colourless gas?
which gas shows brisk effervescence?