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12. What is teratogenic action?
Effects that harm the developing embryo or fetus. Example: thalidomide.
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6. Which chemical is known for causing allergic (sensitizing) reactions?
Formaldehyde.
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14. Name two gases detected using portable gas analyzers.
Hydrogen sulfide (H₂S) and carbon monoxide (CO).
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13. What is the main principle of colorimetric indicator tubes in rapid air analysis?
Air is passed through a reagent-filled tube; the length or intensity of color change shows chemical concentration.
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eraser
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fairy
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fairy
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thief
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8. Which chemicals cause nephrotoxic effects on the kidneys?
Mercury, cadmium, and lead salts.
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banana
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magnet
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shark
Other team loses 15 points!
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banana
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18. Give two examples of engineering measures to reduce exposure to chemicals at work.
Local exhaust ventilation and sealed (hermetic) equipment.
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17. What industries commonly use flame ionization detectors (FID)?
Petrochemical and oil industries to detect hydrocarbon vapors.
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15. Which rapid method uses a portable photometer?
Photometric or spectrophotometric rapid tests.
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9. What type of specific action is caused by organophosphorus pesticides?
Neurotoxic action (affects the nervous system).
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20. What medical measures help in preventing chemical intoxication at enterprises?
Pre-employment and periodic medical check-ups, biological monitoring, and availability of first aid/antidotes.
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3. Give two examples of chemicals that cause narcotic (CNS depressant) effects.
Benzene and toluene.
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heart
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gift
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gift
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banana
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20
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2. What is meant by specific action of chemical factors?
Targeted and predictable effects on certain organs or systems due to the chemical’s structure and metabolism.
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7. What is hepatotoxicity?
Damage to the liver caused by chemicals such as carbon tetrachloride and ethanol.
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