Acetone And Acetophenone Quiz
- 1.
How to differentiate between acetone and acetophenone ?
- A.
Dry ignition test
- B.
Miscibility
- C.
Phenyl hydrazine
- D.
" a " and " b" are both correct
- E.
"b" and " c" are both correct
- F.
A , b , c are all correct
Correct Answer
F. A , b , c are all correctExplanation
The correct answer is a , b , c are all correct.
The dry ignition test is a method used to differentiate between acetone and acetophenone. Acetone readily evaporates upon ignition, leaving no residue, while acetophenone leaves a dark residue.
Miscibility is another way to differentiate between the two compounds. Acetone is completely miscible in water, while acetophenone is only partially miscible.
Lastly, phenyl hydrazine can be used to distinguish between acetone and acetophenone. Acetone does not react with phenyl hydrazine, while acetophenone forms a yellow-orange precipitate.Rate this question:
-
- 2.
" sodium nitroprusside " Can Or Can't differentiate between acetone and acetophenone ?
- A.
Can
- B.
Can't
Correct Answer
B. Can'tExplanation
Sodium nitroprusside cannot differentiate between acetone and acetophenone. This is because sodium nitroprusside is a reagent that is commonly used to test for the presence of ketones, but it does not have the ability to distinguish between different types of ketones. Therefore, it will give the same result for both acetone and acetophenone, making it unable to differentiate between them.Rate this question:
-
- 3.
Why sodium nitroprusside can't differentiate between acetone and acetophenone ?
- A.
Because the exist of O=C--CH3 G.function
- B.
Because the exist of O=C--OH G.function
- C.
Because the exist of O=C--H G.function
- D.
A and b are both correct
Correct Answer
A. Because the exist of O=C--CH3 G.functionExplanation
The correct answer is "because the exist of O=C--CH3 G.function". Sodium nitroprusside cannot differentiate between acetone and acetophenone because both compounds have a similar functional group, which is O=C--CH3. This functional group is responsible for the reaction with sodium nitroprusside, causing a color change. Therefore, both acetone and acetophenone would produce a similar result when reacted with sodium nitroprusside.Rate this question:
-
- 4.
Iodoform is the confirmatory test for ________ ?
- A.
Ketone
- B.
Aldehyde
- C.
Aldehyde and Ketone
Correct Answer
A. KetoneExplanation
Iodoform is the confirmatory test for ketone.Rate this question:
-
- 5.
We use fehling solution as Oxadizing agent ..
- A.
Yes
- B.
No
- C.
Option 3
- D.
Option 4
Correct Answer
B. NoExplanation
The explanation for the answer "No" is that Fehling solution is not used as an oxidizing agent. Fehling solution is a chemical reagent used for detecting the presence of reducing sugars, particularly aldehydes. It consists of two separate solutions, Fehling solution A and Fehling solution B, which are mixed together before use. When a reducing sugar is present, it reacts with Fehling solution to form a reddish-brown precipitate of copper(I) oxide. Therefore, Fehling solution is not an oxidizing agent but rather a reducing agent.Rate this question:
-
- 6.
Sodium nitroprusside Give .... ?
- A.
Red blood ppt
- B.
Canary yellow ppt
- C.
Red blood colour
- D.
Option 4
Correct Answer
C. Red blood colourExplanation
Sodium nitroprusside is known to react with certain compounds, such as cysteine, to produce a red color. Therefore, when sodium nitroprusside is given, it is expected to result in a red blood color. This is the correct answer.Rate this question:
-
- 7.
No effervescence with Na2Co3 is an evidence that ?
- A.
The unknown is acid
- B.
The unknown is not acid
- C.
Option 3
- D.
Option 4
Correct Answer
B. The unknown is not acidExplanation
The absence of effervescence with Na2Co3 indicates that the unknown substance is not acidic. Effervescence is the release of gas bubbles when an acid reacts with a carbonate compound like Na2Co3. Since there is no effervescence observed, it suggests that the unknown substance does not possess acidic properties.Rate this question:
-
- 8.
The colour of ppt of iodoform is yellow ppt with turbidity
- A.
Yes
- B.
No
- C.
Yes , but without turbidity
Correct Answer
A. YesExplanation
The correct answer is "yes" because the color of the ppt (precipitate) of iodoform is indeed yellow. The presence of turbidity is not mentioned in the given statement, so it is not a necessary characteristic of the iodoform ppt.Rate this question:
-
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
Nov 26, 2017Quiz Created by
Momenabdelmoniem
- Atomic Theory Quizzes
- Chemical Bonding Quizzes
- Chemical Reaction Quizzes
- Chemistry Practice Quizzes
- Clinical Chemistry Quizzes
- Electrolysis Quizzes
- Functional Group Quizzes
- Gas Quizzes
- General Chemistry Quizzes
- IBSL Chemistry Quizzes
- Medicinal Chemistry Quizzes
- Molecule Quizzes
- Periodic Table Quizzes
- Rate Of Reaction Quizzes
- Reaction Quizzes
- Soap Quizzes
- Solution And Mixture Quizzes
- State Of Matter Quizzes
- Stoichiometry Quizzes
Back to top