Advertisements
Advertisements
Question
Among dimethylamine (pKb = 3.27) and diethylamine (pKb = 3.0), which one is more basic?
Advertisements
Solution
Among dimethylamine (pKb = 3.27) and diethylamine (pKb = 3.0), diethylamine is more basic. The basicity of amines is quantitatively expressed by their pKb values, with a smaller pKb value indicating a stronger base. Therefore, since diethylamine has a lower pKb value compared to dimethylamine, it is the more basic compound.
APPEARS IN
RELATED QUESTIONS
How are 1 - nitropropane, 2-nitropropane and 2-methyl 2- nitropropane are distinguished from each other using nitrous acid?
Primary and secondary nitroalcanes containing α - H atom show property of -
- chain isomerism
- tautomerism
- optical isomerism
- geometrical isomerism
Distinguish between the following pairs of compounds: Aniline and N-methylaniline
Describe a method for the identification of primary, secondary and tertiary amines. Also write chemical equations of the reactions involved.
Give a plausible explanation for the following:
Why do primary amines have higher boiling points than tertiary amines?
When primary amine reacts with CHCl3 in alcoholic KOH, the product is _______.
(A) aldehyde
(B) alcohol
(C) cyanide
(D) an isocyanide
What is the action of Benzene Sulphonyl Chloride on primary, secondary and tertiary
amines?
What is the action of nitrous acid on secondary nitroalkane?
On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic compound formed is ______.
Primary, secondary and tertiary amines may be separated by using ______.
Identify the compound that will react with Hinsberg’s reagent to give a solid which dissolves in alkali.
Identify the compound that will react with Hinsberg’s reagent to give a solid which dissolves in alkali.
Arrange the following in the increasing order of their boiling points:
A: Butanamine
B: N, N-Dimethylethanamine
C: N- Etthylethanaminamine
Isocyanide reaction involves the intermediate formation of ______.
The presence of primary amines can be confirmed by ______.
Match List I with List II.
| List I | List II | ||
| (A) | Benzenesulphonyl chloride | (I) | Test for primary amines |
| (B) | Hoffmann bromamide reaction | (II) | Anti Saytzeff |
| (C) | Carbylamine reaction | (III) | Hinsberg reagent |
| (D) | Hoffmann orientation | (IV) | Known reaction of Isocyanates |
Choose the correct answer from the options given below:
Give reasons:
(CH3)2NH is more basic than (CH3)3N in an aqueous solution.
Explain why (CH3)2NH is more basic than (CH3)3N in aqueous solution.
Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI.
- Al3+
- Cu2+
- Ba2+
- Co2+
- Mg2+
Choose the correct answer from the options given below:
