JEE Exam > JEE Questions > Which of the following will not give iodoform...
Start Learning for Free
Which of the following will not give iodoform test?
- a)Ethanol
- b)Ethanal
- c)Isopropyl alcohol
- d)Benzyl alcohol
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
Which of the following will not give iodoform test?a)Ethanolb)Ethanalc...
Iodoform Test
The iodoform test is a qualitative test used to identify the presence of a methyl ketone, a secondary alcohol or a primary alcohol that can be oxidized to a methyl ketone.
The test is based on the reaction of iodine with the methyl ketone or alcohol in the presence of a strong base such as sodium hydroxide.
Iodoform test is positive if a yellow precipitate of iodoform is formed.
Options
a) Ethanol: Ethanol is a primary alcohol that can be oxidized to acetaldehyde which is a methyl ketone. Hence, ethanol gives a positive iodoform test.
b) Ethanal: Ethanal is a methyl ketone, and it gives a positive iodoform test.
c) Isopropyl alcohol: Isopropyl alcohol is a secondary alcohol that can be oxidized to acetone which is a methyl ketone. Hence, isopropyl alcohol gives a positive iodoform test.
d) Benzyl alcohol: Benzyl alcohol is a primary alcohol that cannot be oxidized to a methyl ketone. Hence, benzyl alcohol does not give a positive iodoform test.
Conclusion
The correct option is 'D' (Benzyl alcohol) as it does not give a positive iodoform test.
The iodoform test is a qualitative test used to identify the presence of a methyl ketone, a secondary alcohol or a primary alcohol that can be oxidized to a methyl ketone.
The test is based on the reaction of iodine with the methyl ketone or alcohol in the presence of a strong base such as sodium hydroxide.
Iodoform test is positive if a yellow precipitate of iodoform is formed.
Options
a) Ethanol: Ethanol is a primary alcohol that can be oxidized to acetaldehyde which is a methyl ketone. Hence, ethanol gives a positive iodoform test.
b) Ethanal: Ethanal is a methyl ketone, and it gives a positive iodoform test.
c) Isopropyl alcohol: Isopropyl alcohol is a secondary alcohol that can be oxidized to acetone which is a methyl ketone. Hence, isopropyl alcohol gives a positive iodoform test.
d) Benzyl alcohol: Benzyl alcohol is a primary alcohol that cannot be oxidized to a methyl ketone. Hence, benzyl alcohol does not give a positive iodoform test.
Conclusion
The correct option is 'D' (Benzyl alcohol) as it does not give a positive iodoform test.
Free Test
FREE
| Start Free Test |
Community Answer
Which of the following will not give iodoform test?a)Ethanolb)Ethanalc...
Bro just check is CH3CHOH or CH3CO present so it will give iodoform test
Attention JEE Students!
To make sure you are not studying endlessly, EduRev has designed JEE study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in JEE.
|
Explore Courses for JEE exam
|
|
Top Courses for JEEView all
Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer?
Question Description
Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer?.
Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE.
Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following will not give iodoform test?a)Ethanolb)Ethanalc)Isopropyl alcohold)Benzyl alcoholCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice JEE tests.
|
|
Explore Courses for JEE exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup