I keep missing these questions. help? Which organic solvent would be the best to

Question

I keep missing these questions. help?

Which organic solvent would be the best to use for a liquid liquid extraction when the organic layer will be on top of the aqueous layer?

True or false: all organic solvents are less dense than water

To minimize contamination of two layers in the separatory funnel, the lower layer should always be removed first from the __________ of the separatory funnel and the upper layer from the __________ of the separatory funnel.

This experiment uses caustic substances. What does caustic mean

Explanation / Answer

Which organic solvent would be the best to use for a liquid-liquid extraction when the organic layer will be on top of the aqueous layer?

Diethyl ether, hexane etc

all organic solvents are less dense than water. This statement is false.

Chloroform, dichloromethane are examples of solvents which are more denser than water.

Caustic means corrosive. For this experiments, corrosive substances are used

To minimize contamination of two layers in the separatory funnel, the lower layer should always be removed first from the Bottom of the separatory funnel and the upper layer from the top of the separatory funnel.

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