CSIR UGC JRF NET Chemistry Question Paper

CSIR UGC JRF NET Chemistry Question Paper
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Showing posts with label Alcohols and Phenols. Show all posts
Showing posts with label Alcohols and Phenols. Show all posts

Chemistry Exam study materials - Alcohols and Phenols

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Find the correct answer by clicking on the choice given.

1. What is the major product of the following reaction?




2. What is the major product of the following reaction?


3. Which of the following reagents could be used to distinguish between the following compounds by a visible reaction...one that produces either gas bubbles or a color change?


(a) KMnO4, H+, cold

(b) NaOH

(c) CH3MgBr

(d) LiAlH4



4. The major reason that phenol is a better Brønsted acid than cyclohexanol is...

(a) it is a better proton donor.

(b) the cyclohexyl group is an electron donating group by induction, which destabilizes the anion formed in the reaction.

(c) phenol is able to stabilize the anion formed in the reaction by resonance.

(d) the phenyl group is an electron withdrawing group by induction, which stabilizes the anion formed in the reaction.



5. What is the best reagent to convert isopropyl alcohol to isopropyl bromide?


(a) HBr

(b) SOBr2

(c) Br2

(d) CH3MgBr



6. What is the major product of the following reaction?




7. What is the major product of the following reaction?