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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the study of the separation, identification, and quantification of the chemical components of natural and synthetic origins?

Toxicology

Pollution control chemistry

Analytical chemistry

Environmental chemistry

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which concentration unit is commonly used for environmental pollutants present at trace levels?

Molarity (M)

Percent (%)

Parts per million (ppm)

Normality (N)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the applied analytical chemistry concerning environmental pollutants?

Environmental chemistry

Pollution control chemistry

Analytical chemistry

Environmental analytical chemistry (EAC)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of matrices are diverse in environmental analytical chemistry?

Air, water, soil, and many others

Only air and water

Only soil and sediment

Only hazardous waste and biological specimen

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is sample preparation critical in environmental analytical chemistry?

To speed up the process

To decrease the accuracy of the procedure

To increase the cost of analysis

To remove interference and concentrate chemicals of interest

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is essential when dealing with a large number of samples in environmental monitoring?

Low cost

Sample contamination

Automation

Manual efforts

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which organization publishes consensus methods for environmental sampling and analysis?

EPA

ASTM

NIOSH

FDA

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