Which is correct about vanillin?

(1) A flavoring agent giving vanilla flavor 

(2) o-hydroxy-m-methoxy benzaldehyde 

(3) A food additive 

(4) All of the above

Subtopic:  Soaps & Detergents, Dyes & Propellant |
 86%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The rose odour from an ester is formed by the action of HCOOH on:

(1) pine oil 

(2) olive oil 

(3) geraniol 

(4) turpentine oil 

Subtopic:  Soaps & Detergents, Dyes & Propellant |
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Which of the following is a natural dye?

(1) Martius yellow 

(2) Alizarin 

(3) Phenolphthalein 

(4) Oragne l

Subtopic:  Soaps & Detergents, Dyes & Propellant |
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Which one of the following is a vat dye?

(1) Alizarin 

(2) lndigo 

(3) Malachite green 

(4) Methyl orange 

Subtopic:  Soaps & Detergents, Dyes & Propellant |
 57%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

A vat dye, often used in dyeing jeans is -

1. Indigo 

2. Alizarin 

3. Picric acid 

4. Crystal violet 

Subtopic:  Soaps & Detergents, Dyes & Propellant |
 66%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Which of the followig is not a chromophore?

(1) N=N

(2) NO

(3) NO2

(4) NH2

Subtopic:  Soaps & Detergents, Dyes & Propellant |
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Which one is acidic dye?

(1) Methyl orange 

(2) Methyl red 

(3) Phenolphthalein 

(4) All of these 

Subtopic:  Soaps & Detergents, Dyes & Propellant |
 62%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Alizarin gives a red colour by mordanting it with the sulphate of a metal.

The metal ion involved is:

1. Cr3+

2. Fe3+

3. Al3+

4. Sn2+

Subtopic:  Soaps & Detergents, Dyes & Propellant |
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Which of the following is not a chlorinated insecticides?

(1) DDT

(2) Methoxychlor 

(3) Parathion

(4) BHC

Subtopic:  Soaps & Detergents, Dyes & Propellant |
 61%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Which of the following is not antipyretic?

(1) Aspirin 

(2) Paracetamol 

(3) Barbituric acid 

(4) Phenacetin 

Subtopic:  Classification of Medicines |
 75%
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