HSC Science (General) 12th Board ExamMaharashtra State Board
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Solution - How Are 1 - Nitropropane, 2-nitropropane and 2-methyl 2- Nitropropane Are Distinguished from Each Other Using Nitrous Acid? - HSC Science (General) 12th Board Exam - Chemistry

Question

How are 1 - nitropropane, 2-nitropropane and 2-methyl 2- nitropropane are distinguished from each other using nitrous acid?

Solution

1-Nitropropane reacts with nitrous acid to form blue-coloured nitrosonitroalkanes which dissolve in NaOH to give red solution.

 

2-Nitropropane reacts with nitrous acid to form blue-coloured nitrosonitroalkanes which are further insoluble in NaOH because of the absence of the alpha hydrogen atom.

2-Methyl2-nitropropane does not react with nitrous acid because it has no alpha-hydrogen atom.

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Reference Material

Solution for question: How Are 1 - Nitropropane, 2-nitropropane and 2-methyl 2- Nitropropane Are Distinguished from Each Other Using Nitrous Acid? concept: null - Identification of Primary, Secondary and Tertiary Amines. For the courses HSC Science (General) , HSC Science (Computer Science), HSC Science (Electronics)
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