NEET-XII-Chemistry
c2022 year:2022
- #42The pollution due to oxides of sulphur gets enhanced due to the presence of : (a) particulate matter (b) ozone (c) hydrocarbons (d) hydrogen peroxide Choose the most appropriate answer from the options given below:
(A)
(a),
(c),
(d) only
(B)
(a),
(d) only
(C)
(a),
(b),
(d) only
(D)
(b),
(c),
(d) onlydigAnsr: CAns : The presence of particulate matter in polluted air catalyses the oxidation of sulphurdioxide to sulphur trioxide.
`` 2 SO _{2}( g )+ O _{2}( g ) \rightarrow 2 SO _{3}( g ) ``
The reaction can also be promoted by ozone and hydrogen peroxide.
`` SO _{2}( g )+ O _{3}( g ) \rightarrow SO _{3}( g )+ O _{2}( g ) ``
`` SO _{2}( g )+ H _{2} O _{2}( l ) \rightarrow H _{2} SO _{4}( aq ) ``