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Ozone
Chlorine
Fluorine
Methane
When a gas is subjected to adiabatic expansion, it gets cooled due to
When a gas is turned into a liquid, the process is called
When a lead storage battery is discharged,
When a spoon is to be electroplated with nickel the spoon is
When an iron nail is put in copper sulphate solution, the colour of the solution turns green. This is because_.
When conc. H2 SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to
When does a saturated hydrocarbon gives a sooty flame on burning?
When formaldehyde & potassium hydroxide are heated, we get
When formaldehyde and potassium hydroxide are heated , we get
When iron and wood are exposed to sunlight, the iron rod becomes hot quickly because of