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NCERTCBSE CHEMISTRY CLASS 12 CHAPTERWISE MCQ QUESTIONS

Welcome to your Unit 13: Amines

1. 
How many lone pairs of electrons does the nitrogen atom of amines have?
2. 
When two alkyl groups are attached to the nitrogen atom in an amine, it is known as a _______ amine.
3. 
Which of the following is not a classification of amines?
4. 
In the IUPAC system, the prefix N– is generally used for _______ amines.
5. 
Identify the incorrect name of the shown compound
6. 
What is the common name of the simplest aromatic amine?
7. 
Which of the following is the most preferred reagent for reducing nitroethane to ethylamine?
8. 
How many more carbon atoms are present in the amine formed from the reduction of a nitrile, than in the nitrile itself?
9. 
Which of the following amines is not a gas?
10. 
Amines are generally ______ in nature.
11. 
If p, q and r are the pKb values of methylamine, N-methylamine and N,N-dimethylamine respectively, what is the correct order of p, q and r?
12. 
If x and y are the pKb values of p-methylaniline and N,N-dimethylaniline, what is the relation between x and y?
13. 
What is the main product of the following reaction?
14. 
What is the most suitable temperature for the diazotisation reaction to take place?
15. 
Aromatic diazonium salts are stable at _____ temperatures.
16. 
Which of the following cannot be formed from Sandmeyer reaction on benzenediazonium chloride?
17. 
Identify ‘Y’ in the following reaction.
18. 
The coupling reaction is a type of _________ reaction.
19. 
What is the minimum number of reactions required for the conversion of aniline to 1,3,5-tribromobenzene?
20. 
Diazonium salts are used in which of the following industries?

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