Please Help, 1) 2-propanone is also called methyl ethyl ketone. A)True. B) False
ID: 891387 • Letter: P
Question
Please Help,
1) 2-propanone is also called methyl ethyl ketone.
A)True. B) False.
2) A positive Benedict's test is indicated by the formation of:
a) Cu2+ . b) Cu2O . c) Cu. d) a metallic mirror.
3) Acetals are prepared from ketones and alcohols.
A) True. B) False.
4) Acetone has the structure:
5) Acetone can strongly hydrogen bond to water:
A) True. B) False.
6) An important organic solvent is:
A) citral. B) menthone . C) acetone. D) benzaldehyde.
7) Formaldehyde is a __________ at room temperature.
A) Liquid. B) can't tell. C) solid. D) gas.
8) Hydrogenation of an aldehyde will produce?
A) no reaction. B) a carboxylic acid. C) a primary alcohol. D) an acetal.
9) In the IUPAC nomenclature system, the name of which of the following would end in -al?
A) an aldehyde. B) an alcohol. C) an alkane. D) a phenol.
10) Overdose of __________ during pregnancy has proven to cause birth defects.
A) Vitamin A. B) Vitamin B6. C) Vitamin D. D) Vitamin C.
11) Oxidation of an aldehyde will produce?
A) a carboxylic acid. B) an acetal. C) no reaction. D) a primary alcohol.
12)The IUPAC name for formaldehyde is methanal.
A)True. B)False.
13)The formation of a ketal from a hemiketal and alcohol is usually a base catalyzed reaction.
A)True. B)False.
14) The name 4,5-dichlorocyclohexanone should be:
a)3,4-dichlorocyclohexanone. B)2,3-dichlorocyclohexanone.
C)4,5-dichlorocyclohexanone. D)1,2-dichlorocyclohexanone.
15) The result of a hydrolysis reaction is:
A) one that results in the formation water. B) splitting of the molecule into the component substances.
C) causing an oxidation-reduction reaction resulting in hydration. D) getting the chemicals involved wet.
16) The simplest ketone has three carbon atoms.
A)True. B)False.
17) To what characteristic(s) do aldehydes and ketones owe their ability to form hydrogen bonds?
A) oxygen is always polar. B) possessing an oxygen instead of an interior carbon.
C) having a doubly bonded oxygen. D) all of the responses are correct.
18) To what class of compounds does glucose belong?
A) cyclic ketone. B) Acid. C) cyclic aldehyde. D) cyclic hemiacetal.
19) What are the risks of constant sunbathing?
A) skin cancer. B) thickening of the skin. C) there is more than one correct response. D) premature aging of the skin.
A) 2-bromobutanone. B) 2-bromobutanal. C) 3-bromobutanal. D) 3-bromobutanone.
A) 1-methylcyclobutanone. B) 1-methylcyclobutanal. C) methylbutanone. D) 2-methylcyclobutanone.
22) What is the reason for norethynodrel's ability to function as a contraceptive?
A) Norethynodrel is capable of mimicking progesterone establishing a false pregnancy.
B) Norethynodrel bonds to estrogen to reduce the estrogen levels.
C) Norethynodrel replaces estrogen and displaces the normal hormonal control.
D) Norethynodrel is a ketone that is required to neutralize ovum production.
23) Which is a test for the presence of an aldehyde:
A) Benedict's reagent. B) a color change on reaching the boiling point. C) boiling point determination.
D) Silver's reagent.
24) Which of the following compounds can form hydrogen bonds with water molecules?
25) __________ is the active ingredient in Heet and Methacin, and Pain Doctor which are pain relieving creams that are over the counter preparation.
A) Resiniferatoxin. B) RTX. C) Aspirin. D) Capsaicin.
PLEASE HELP.
Explanation / Answer
There are multiple questions here . i am allowed to answer only 1 at a time but I will answer 1st 5 question for you.Please ask other as different question.
1)
False
methyl ethyl ketone will be called as 2-propanone. Since here there is 4 carbon:1 in methyl, 2 in methyl and another one in ketone
2)
Answer Cu2O
Reagents which give positive test reduces the cupric ions (Cu2+) present in the Benedict's reagent to cuprous ions (Cu+) which get precipitated as insoluble red copper(I) oxide(Cu2O).
3)
True
It is fact reaction
4)
Images are not visible
5)
False
Hydrogen in acetone are attached to carbon which is less electronegative to form H bonding