Botulin,the most deadly poison known,is
A) organophosphorus pesticide.
B) a nerve gas for chemical warfare.
C) formed in improperly canned food by anaerobic bacteria.
D) a chlorinated hydrocarbon.
Correct Answer:
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Q23: Lead is used in
A)paint.
B)some gasolines.
C)plumbing fixtures.
D)Lead is
Q24: Curare,the blow dart poison of Amazonian Indians,disrupts
Q25: Acetylcholine is a chemical messenger that
A)activates the
Q26: Iron (as Fe²⁺)is
A)toxic at all concentrations.
B)safe at
Q27: The cause of itai-itai,the "ouch-ouch" disease is
A)cadmium.
B)mercury.
C)lead.
D)iridium.
Q29: Which of these is NOT considered a
Q30: Which of these is considered to be
Q31: Nitrate acts as a poison by
A)oxidizing hemoglobin
Q32: Pb (as Pb²⁺)is
A)toxic at all concentrations.
B)safe at
Q33: The antidote for mercury poisoning is
A)atropine.
B)nicotine.
C)BAL.
D)coniine.
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