4. Among the following which one is the example of chemical adsorption
a) adsorption of N2 in mica
b) adsorption of Oz in tungsten
c) adsorption of gases in charcoal d) adsorption of coloured water in charcoal
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Option C is correct.
such type of things are used in caps/helmets of coal miners during mining to adsorb poisonous gaseous.
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