Which of the following is the most helpful laboratory safety rule:
A. be prepared
B. be cautious with chemicals
C. use plain old common sense
D. be careful
Answer: C
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Which of the following is not a laboratory safety rule?
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Which of the following is not a safety equipment in the Biochemistry laboratory?
A. broken glass receptacle
B. sign of environmental hazard
C. chemical waste containers
D. first aid kit
Answer: B
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Which of the following is not a Biochemistry laboratory DON'T?
A. pour chemicals down the drains without permission
B. wearing gloves
C. engage in childish antics
D. performing your own experiment without permission
Answer: B
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Which of the following is not a laboratory housekeeping device?
A. keep the drawers and cabinet doors closed
B. keep aisles clear of obstacles
C. switch off all electricals
D. put ordinary waste papers in a waste paper basket separate from chemical wastes
Answer: C
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Which of the following best describes how Buchner funnels should be cleaned
A. triple rinse with a compatible solvent followed by tap water
B. rinse in an appropriate solvent to remove substances that are clinging to them
C. rinse 2-3 times with ethanol or acetone and then with deionized water
D. rinse with copious volume of tap water and then with deionized water
Answer: B
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Which of the following should not be used for cleaning a cuvette?
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Which of the following cannot be used to remove protein contaminants?
A. hot soapy water
B. aggressive acidic solution
C. detergents
D. peptidase solution
Answer: A
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Which of the following is not needed for cleaning pipettes and volumetric flasks?
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One of these facilities is not a laboratory
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