Which of the following is not correct as a safety rule for handling chemicals? Material safety data sheets should be kept in an easy-to-read place and referenced from time to time. Inorganic salts that react when they come into contact with acid should be worked in an enclosed space. When mixing chemical substances with high oxidative properties with organic compounds, it is carried out slowly. For liquid nitrogen, liquid oxygen, etc., pay attention to cryogenic frostbite during the experiment.

Which of the following is not correct as a safety rule for a biochemical laboratory? The head of the laboratory educates the researchers as necessary. The laboratory table and the equipment used for the experiment are often disinfected. Research workers keep relevant data in the laboratory. Access to untrained researchers is restricted during the experiment.

Which of the following should be managed as chemically hazardous Laboratory Waste?: A. Solid and liquid chemicals from lab processes B. Contaminated lab trash C. Clean broken glassware D. Unwanted stock chemicals E. Non-returnable gas cylinders F. Nitrile gloves with no visible contamination G. Rinse water from cleaning empty chemical containers H. A, B, D, E and G

Which of the following is not correct as a safety rule for handling high pressure gas? Store the gas container in a well ventilated and out of direct sunlight. When using gas in the laboratory, a fall prevention device is used. Electric facilities in the gas storage are equipped with explosion-proof and static electricity removal facilities. Containers of colored gas other than the gray ones are stored next to each other.

QUESTION:Which of the following chemicals require labeling? Chemicals must be labeled when:POSSIBLE ANSWERS:Transferred to small portable containers for immediate use.Part of a group marked by detailed batch tickets.Flowing through a pipe for containment or transport.Stored in stationary process containers near a hazard sign.

a) List three safety precautions that should be taken while performing a chemistry experiment in the laboratory.b) Design a simple experiment to demonstrate the process of water purification.