MolSynapsequestion bank

MolSynapse / Question bank / Environmental Chemistry / Air pollution: gaseous pollutants, acid rain, smog

JEE Main levelOne or more correct optionsDifficulty 2 of 3ev030

Which of the following correctly describe methods of controlling vehicular or industrial pollution?

AA catalytic converter oxidises CO and unburnt hydrocarbons to $CO X_{2}$ and $H X_{2} O$ .
BLeaded petrol can be used freely in cars fitted with catalytic converters.
CAn electrostatic precipitator removes gaseous $SO X_{2}$ from flue gas.
DA catalytic converter reduces nitrogen oxides to $N X_{2}$ .

Answer: A, D

A three-way converter oxidises CO and hydrocarbons and reduces NO. An electrostatic precipitator removes charged particulates, not gases. Lead poisons the catalyst, so leaded petrol must not be used.

Practice Environmental Chemistry More on Air pollution: gaseous pollutants, acid rain, smog

Previous questionNext question

More questions on Air pollution: gaseous pollutants, acid rain, smog

Marble (calcium carbonate) is attacked by sulphuric acid present in acid rain. The products are JEE Main level
Which of the following statements about classical (London type) smog are correct? JEE Main level
Which of the following are constituents of photochemical smog? JEE Main level
Which of the following statements about carbon monoxide are correct? JEE Main level
Which of the following statements about acid rain are correct? JEE Main level
Rain water contains sulphuric acid at a concentration of 2.5x10^-5 mol L^-1 and no other acid or base. Assume H2SO4 is fully dissociated in ... JEE Main level