The additional necks on a 3 Headed Round Bottom Flask allow insertion of what?

The additional necks on a 3 Headed Round Bottom Flask allow insertion of what?

• A. Pipette Or Funnel
• B. Gas Outlet
• C. Thermometer Or Mechanical Stirrer
• D. Vacuum Line

Answer: (C)

Extra necks on a multi-neck round-bottom flask are provided so you can reach into the reaction mixture without opening the system. One neck is typically used for inserting a thermometer, which lets you monitor temperature continuously. Another neck is designed to allow a mechanical stirring shaft to pass through a stopper and reach the liquid, so you can stir the mixture while keeping everything sealed. The remaining necks can be used for other connections like gas inlet/outlet or a condenser, but the feature these necks enable most directly is access for a thermometer or a mechanical stirrer.

Extra necks on a multi-neck round-bottom flask are provided so you can reach into the reaction mixture without opening the system. One neck is typically used for inserting a thermometer, which lets you monitor temperature continuously. Another neck is designed to allow a mechanical stirring shaft to pass through a stopper and reach the liquid, so you can stir the mixture while keeping everything sealed. The remaining necks can be used for other connections like gas inlet/outlet or a condenser, but the feature these necks enable most directly is access for a thermometer or a mechanical stirrer.