Advertisements
Advertisements
प्रश्न
What is the action of nitrous acid on primary nitroalkane?
उत्तर
Reaction with nitrous acid: The reaction is used to distinguish between primary, secondary or tertiary nitroalkanes. With nitrous acid, α-hydrogen is replaced by nitroso group.
a. Primary nitroalkanes react with nitrous acid to form blue coloured nitroso-nitroalkanes (aci form) which on dissolution in sodium hydroxide gives red solution.
APPEARS IN
संबंधित प्रश्न
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
Describe a method for the identification of primary, secondary and tertiary amines. Also write chemical equations of the reactions involved.
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?
What is the action of nitrous acid on tertiary nitroalkane
Describe Hinsberg method for the identification of primary, secondary and tertiary amines. Also write the chemical equations of the reactions involved.
Which of the following reactions will not give a primary amine?
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.
Given below are two statements labelled as Assertion (A) and Reason (R).
Assertion (A): Tertiary amines are more basic than corresponding secondary and primary amines in gaseous state.
Reason (R): Tertiary amines have three alkyl groups which cause +I effect.
Select the most appropriate answer from the options given below:
Compound A is converted to B on reaction with CHCl3 and KOH. The compound B is toxic and can be decomposed by C. A, B and C respectively are ______.
Isocyanide reaction involves the intermediate formation of ______.
The presence of primary amines can be confirmed by ______.
Which of the following is not a correct statement for primary aliphatic amines?
A compound 'X' on treatment with Br2/NaOH, provided C3H9N, which gives positive carbylamine test. Compound 'X' is ______.
Give reasons:
(CH3)2NH is more basic than (CH3)3N in an aqueous solution.
In the reaction \[\ce{C6H5NH2 + CHCl3 + 3KOH -> A + 3B + 3C}\] the product A is:
Among dimethylamine (pKb = 3.27) and diethylamine (pKb = 3.0), which one is more basic?
