MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
p-Aminophenol on coupling with benzenediazonium chloride in a basic medium gives 4-amino-3-phenylazophenol. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
When a diazonium salt is treated with p-cresol, at which position with respect to the hydroxy group does the coupling occur? |
| A. | ortho |
| B. | meta |
| C. | para |
| D. | coupling does not take place |
| Answer» B. meta | |
| 3. |
The reaction between benzenediazonium chloride and N,N-dimethylaniline, in an acidic medium at 273 K gives an orange coloured compound. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
What is the most suitable pH of the medium for the conduction of coupling reaction of benzenediazonium chloride with phenol? |
| A. | 2 |
| B. | 4 |
| C. | 7 |
| D. | 10 |
| Answer» C. 7 | |
| 5. |
The reaction between a diazonium salt and aniline in a slightly acidic medium gives _______ |
| A. | o-aminoazobenzene |
| B. | m-aminoazobenzene |
| C. | p-aminoazobenzene |
| D. | no reaction |
| Answer» D. no reaction | |
| 6. |
The reaction between benzenediazonium chloride and phenol results in a ______ coloured compound. |
| A. | yellow |
| B. | orange |
| C. | red |
| D. | purple |
| Answer» C. red | |
| 7. |
The coupling reaction of benzenediazonium chloride with aniline occurs in a ______ medium. |
| A. | strongly basic |
| B. | weakly basic |
| C. | neutral |
| D. | weakly acidic |
| Answer» E. | |
| 8. |
The coupling reaction is a type of _________ reaction. |
| A. | electrophilic addition |
| B. | electrophilic substitution |
| C. | nucleophilic addition |
| D. | nucleophilic substitution |
| Answer» C. nucleophilic addition | |
| 9. |
The reaction involving the conversion of diazonium salts to azo compounds is known as _______ reaction. |
| A. | diazotisation |
| B. | deamination |
| C. | coupling |
| D. | carbylamine |
| Answer» D. carbylamine | |