The correct order of reactivity of PhMgBr with,

 

         O                    O                    O
         ||                    ||                    ||
PHCPH CH3CH   CH3CCH3 is:
         (l)           (ll)                     (lll)

(1) I>II>III

(2) III>II>I

(3) II>III>I

(4) II>I>III

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 66%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The IUPAC name of the CH3COCH(CH3)2 is:

(1) 4-methyl isopropyl ketone

(2) 3-methyl-2-butanone

(3) isopropylmethyl ketone

(4) 2-methyl-3-butanone

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 81%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

In the folllowing sequence products I, J and L are formed and K represents a regent.

 

(i) The structure of the product I is:

(ii) The structures of compounds J & K respectively are:

(iii) The structure of product L is:

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A tertiary alcohol H upon acid catalysed dehydration gives a product I. Ozonolysis of I leads to compounds J & K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only M.

(i) Compound H is formed by the reaction of: 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Vanillin, used as a flavouring agent, is:
1. An Aliphatic alcohol
2. An Aromatic aldehyde
3. A Hydrocarbon
4. A Carbohydrate

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 88%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Acetophenone on oxidation by perbenzoic acid gives phenyl acetate. The reaction is named as:

1. Baeyer-Villiger oxidation

2. Perkin's reaction

3. Claisen condensation

4. Reformatsky reaction

Subtopic:  Name Reaction |
 54%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

In Etard's reaction, toluene is oxidised to benzaldehyde using:

(1) H2O2

(2) Cl2

(3) chromium trioxide or CrO2Cl2

(4) KMnO4

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 95%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

m-chlorobenzaldehyde on reaction with conc. KOH at room temperature gives:

1. potassium m-chlorobenzoate and m-hydroxybenzaldehyde

2. m-hydroxybenzaldehyde and m-chlorobenzyl alcohol

3. m-chlorobenzyl alcohol and m-hydroxy benzyl alcohol

4. potassium m-chlorobenzoate and m-chlorobenzyl alcohol

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Formylchloride has not been prepared so far. Which can function as formylchloride in formylation ?

(1) HCHO + HCl

(2) HCOOCH3 + HCl

(3) CO + HCl

(4) HCONH2 + HCl

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 50%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

In the reaction, the compound 'X' is:

(1) CH3COOH

(2) Br·CH2COOH

(3) (CH3CO)2O

(4) CHO·COOH

Subtopic:  Carboxylic Acids: Preparation & Properties |
 51%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints