ACS CP ACS CP Environmental Chemistry & Sustainability 2

Question 1

The EPA's Superfund program (CERCLA) is primarily used to:

Accepted Answer

Clean up contaminated hazardous waste sites

Answer

Regulate air emissions from chemical plants

Answer

Issue permits for new chemical facilities

Answer

Monitor drinking water quality standards

Question 2

Which type of water treatment process uses microorganisms to break down organic contaminants?

Accepted Answer

Activated sludge process

Answer

Coagulation/flocculation

Answer

Reverse osmosis

Answer

Ion exchange

Question 3

Which greenhouse gas has the highest global warming potential (GWP) over a 100-year time horizon among common industrial gases?

Accepted Answer

Sulfur hexafluoride (SF6)

Answer

Carbon dioxide (CO2)

Answer

Methane (CH4)

Answer

Nitrous oxide (N2O)

Question 4

The principle of 'E-factor' in green chemistry measures:

Accepted Answer

The ratio of waste generated to product formed (kg waste/kg product)

Answer

Energy efficiency of a reaction

Answer

Environmental toxicity of reaction byproducts

Answer

Electron transfer efficiency in electrochemical processes

Question 5

Volatile organic compounds (VOCs) are regulated as air pollutants primarily because they contribute to formation of:

Accepted Answer

Ground-level ozone and photochemical smog

Answer

Acid rain

Answer

Stratospheric ozone depletion

Answer

Greenhouse gas accumulation

Question 6

Life cycle assessment (LCA) in green chemistry evaluates:

Accepted Answer

Environmental impacts of a product from raw material extraction to end-of-life disposal

Answer

The shelf life of chemical products under various storage conditions

Answer

The expected service life of laboratory instruments

Answer

Regulatory compliance timelines for new chemical registrations