Atmosphere Catalytic converter is used to reduce ans. factory exhaust pollution. automobile exhaust pollution. CO_2 emission. N_2 emission.

The catalytic converter is primarily used to reduce automobile exhaust pollution. It achieves this by converting harmful gases from the car exhaust into less harmful substances.

Here's a step-by-step explanation:

1. The harmful gases produced by a car engine include carbon monoxide (a poisonous gas), nitrogen oxides (which create smog and acid rain), and hydrocarbons (which also contribute to smog).

2. These gases enter the catalytic converter, which contains a core of ceramic honeycomb coated with catalysts. These catalysts are usually made from precious metals like platinum, palladium, and rhodium.

3. As the gases pass over the catalysts, chemical reactions occur. Carbon monoxide and hydrocarbons react with oxygen to form carbon dioxide and water, while nitrogen oxides are broken down into nitrogen and oxygen.

4. The less harmful substances (carbon dioxide, water, and nitrogen) are then released from the car's exhaust pipe into the atmosphere.

So, while the catalytic converter does help to reduce CO_2 emissions, its primary function is to reduce the more harmful gases produced by automobile engines. It does not specifically target N_2 emissions.