Chem 220 exam 2 – Flashcards

Which of the following statements regarding alcohols and ethers are true? Add a check by all the true statements. A. Methoxymethane (dimethyl ether) has a higher boiling point than ethanol. B. Methoxymethane (dimethyl ether) is more soluble in water than is ethanol. C. Methoxymethane (dimethyl ether) is more likely to be a liquid at 50°C than is ethanol. D. Ethanol is more likely to be a liquid at 50°C than is methoxymethane (dimethyl ether). E. Alcohol molecules can form hydrogen bonds among themselves; ether molecules cannot.

Alcohol molecules can for hydrogen bonds among themselves (T/F)

A chemical reaction in which water is formed from the removal of the components of water (H and OH) from a single reaction

increase C-O bonds decreases C-H bonds

decrease C-O bonds increase C-H bonds

where the carbonyl carbon atom has two other carbons directly attached to it (O=C-C)

where the carbonyl carbon atom as at least one H attached to it (O=C-H)

A Aldehyde/Ketone have a ______ bp than alkanes and ethers (similar size)

A Aldehyde/Ketone have a _____ bp than alcohols (similar size)

A 4 C bond aldehyde/keytone is what in water

A 5 C bond aldehyde/ketone is what in water