
Secondary nitroalkanes on treatment with nitrous acid form:
(A)- nitrolic acid
(B)- carboxylic acids
(C)- pseudonitroles
(D)- ketones
Answer
504k+ views
Hint: Nitrous acid is a weak and monoprotic acid known in solution, gas phase, and in the form of nitrite salts.
Complete step by step answer:
-If in a nitro hydrocarbon the hydrogen of an alkane is replaced by a nitro group it is known as a nitroalkane.
-Nitrous acid has the molecular formula and is used in making diazonium salts from amines. The diazonium salts formed are used as reagents in the azo coupling reactions to give azo dyes.
-The reaction of nitrous acid with nitroalkanes helps us to distinguish between the primary, secondary and tertiary nitroalkanes. In this reaction, alpha-hydrogen is replaced by the nitroso group.
-If in an alkane the nitro group is attached to a terminal carbon, then it is known as a primary nitroalkane.
-If in an alkane the nitro group is attached to a saturated carbon atom which has two other carbons attached to it is known as Secondary nitroalkane.
-Primary nitroalkanes can also react with nitrous acid forming a blue-colored nitroso-nitroalkanes (aci form) which on dissolution in sodium hydroxide gives a red solution.
-Secondary nitroalkanes on reaction with nitrous acid give pseudonitroles. Nitrous acid is reduced to nitric acid.
Pseudo nitrols are any class of compounds with general formula and have a pungent odour. They are actually colorless, but the solid dimmers formed in the reaction with nitroalkanes and nitrous acid when fused or dissolved polymerise into monomers of intense and characteristic blue color.So, the correct answer is “Option C”.
Note: You should not get confused with the nitrous acid as nitric acid. Nitrous acid has the molecular formula , whereas nitric acid has the molecular formula .
Complete step by step answer:
-If in a nitro hydrocarbon the hydrogen of an alkane is replaced by a nitro group it is known as a nitroalkane.
-Nitrous acid has the molecular formula
-The reaction of nitrous acid with nitroalkanes helps us to distinguish between the primary, secondary and tertiary nitroalkanes. In this reaction, alpha-hydrogen is replaced by the nitroso group.
-If in an alkane the nitro group is attached to a terminal carbon, then it is known as a primary nitroalkane.

-If in an alkane the nitro group is attached to a saturated carbon atom which has two other carbons attached to it is known as Secondary nitroalkane.

-Primary nitroalkanes can also react with nitrous acid forming a blue-colored nitroso-nitroalkanes (aci form) which on dissolution in sodium hydroxide gives a red solution.

-Secondary nitroalkanes on reaction with nitrous acid give pseudonitroles. Nitrous acid is reduced to nitric acid.


Pseudo nitrols are any class of compounds with general formula
Note: You should not get confused with the nitrous acid as nitric acid. Nitrous acid has the molecular formula
Recently Updated Pages
Master Class 12 Business Studies: Engaging Questions & Answers for Success

Master Class 12 English: Engaging Questions & Answers for Success

Master Class 12 Social Science: Engaging Questions & Answers for Success

Master Class 12 Chemistry: Engaging Questions & Answers for Success

Class 12 Question and Answer - Your Ultimate Solutions Guide

Master Class 11 Business Studies: Engaging Questions & Answers for Success

Trending doubts
Draw a labelled sketch of the human eye class 12 physics CBSE

a Tabulate the differences in the characteristics of class 12 chemistry CBSE

Which one of the following is a true fish A Jellyfish class 12 biology CBSE

Why is the cell called the structural and functional class 12 biology CBSE

Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE

Write the difference between solid liquid and gas class 12 chemistry CBSE
