Alcohols, Pheno...

The most appropriate reagents that can bring about the following transformation is

Which major organic product is formed in the following reaction ?

The major organic product formed in the reaction given below is

In the following hydrolysis reactio, the major final product is

In the reaction given below,

The correct deduction concerning X and Y is

An alkene on treatment with meta chloro perbenzoic acid undergoes epoxidation reaction to give oxirane. What is the correct order of increasing reactivity of the following in the above mentioned epoxidation reaction?

Which of the following compound gives more than one oxirane upon epoxidation with Ag₂O/heat? 

The reaction given beiow that gives oxirane as the major organic product is

Phenol is acidic due to resonance stabilization of its conjugate base :

One of the constituents of baking powder is sodium hydrogencarbonate, the other constituent is

What is the major product of following reaction

Phenol on treatment with Phthalic anhydride gives:

We can obtain picric acid from phenol by:

Phenols do not respond to which of these tests?

Comprehension Type

Direction (Q. Nos. 15-17) This section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).

Passage

Oxirane is a reactive ether, undergo nucleophilic attack at a-carbon in the presence of both acidic and basic medium. The generalised mechanism in the two medium are :

I. Acidic medium

II. Basic medium

As shown above, in acidic medium, nucleophilic attack occur at more substituted α-carbon while in basic medium, nucleophilic attack occur preferably at less substituted α-carbon.

Q. 

In the reaction given below, th e final major organic product Y is

Oxirane is a reactive ether, undergo nucleophilic attack at a-carbon in the presence of both acidic and basic medium. The generalised mechanism in the two medium are :

I. Acidic medium

II. Basic medium

As shown above, in acidic medium, nucleophilic attack occur at more substituted α-carbon while in basic medium, nucleophilic attack occur preferably at less substituted α-carbon.

Q. 

If X is heated with concentrated H₂SO₄ a cyclic compound is formed which is

Oxirane is a reactive ether, undergo nucleophilic attack at a-carbon in the presence of both acidic and basic medium. The generalised mechanism in the two medium are :

I. Acidic medium

II. Basic medium

As shown above, in acidic medium, nucleophilic attack occur at more substituted α-carbon while in basic medium, nucleophilic attack occur preferably at less substituted α-carbon.

Q. 

What would be formed if 2-phenyloxirane is treated with CH₃MgBr followed by acid hydrolysis?

Direction (Q. Nos. 18-22) This section contains 5 questions. When worked out will result in an integer from 0 to 9 (both inclusive).

Q. How many different ether isomers are possible for C₃H₆O ?

Consider the reaction given below,

Q.

How many different triols isomers are formed?

If propene undergoes oxidation to methyl oxirane, what is the net change in oxidation number of carbon atoms?

 In the following reaction,

Q. 

How many different stereoisomers of product formed ?

 How many different arene oxide would be formed on mono epoxidation of phenanthrene?