Please Help!! 1) Phosphate esters are prepared from: A) ester + phosphate. B) ph
ID: 895476 • Letter: P
Question
Please Help!!
1) Phosphate esters are prepared from:
A) ester + phosphate. B) phosphoric acid + alcohol.
C) phosphoric acid + ester. D) phosphoric acid + carboxylic acid.
2) Reacting a carboxylic acid with a base will produce?
A) a carboxylate salt. B) an anhydride. C) an ester. D) no reaction.
3) The IUPAC name of the ester formed from butanoic acid and ethanol is:
A) butyl ethanonate. B) butyl ethanate. C) ethyl butanoate. D) ethyl proponoate
4) The pleasant, characteristic odor of fruit flavorings is often associated with the presence of:
A) carboxylic salts. B) aldehydes. C) esters. D) carboxylic acid.
5) The sodium salt of benzoic acid is used as:
A) a soap. B) a flavoring agent. C) an antacid. D) a food preservative.
6) What would be produced as the result of a dehydration reaction between a carboxylic acid and an alcohol?
A) aldehyde. B) ester. C) alkene. D) acid anhydride.
7) What would be the products if ethyl stearate were to undergo hydrolysis?
A) The products would be ethylaldehyde and stearone. B) The products would be ethyl stearate hydrate.
C) There would be no products as compounds of this nature do not undergo hydrolysis. D) The products would be ethanol and stearic acid.
8) Which physical relationship is attributed to carboxylic acids?
A) Since the carboxylic acids evaporate quickly they all have a scent.
B) The boiling point of carboxylic acids increases with the molecular weight.
C) The carboxylic acids are wax-like solids in the solid state. D) None of these responses are correct.
Explanation / Answer
1) Phosphate esters are prepared from:
B) phosphoric acid + alcohol.
2) Reacting a carboxylic acid with a base will produce,
A) a carboxylate salt
3) The IUPAC name of the ester formed from butanoic acid and ethanol is:
C) ethyl butanoate.
4) The pleasant, characteristic odor of fruit flavorings is often associated with the presence of:
C) esters.
5) The sodium salt of benzoic acid is used as:
D) a food preservative.
6) the result of a dehydration reaction between a carboxylic acid and an alcohol is,
B) ester.
7) the products if ethyl stearate were to undergo hydrolysis would be,
D) The products would be ethanol and stearic acid.
8) the physical relationship attributed to carboxylic acids is,
B) The boiling point of carboxylic acids increases with the molecular weight.