Quaternary ammonium hydroxide- nitro compounds and esters having at least one -hydrogen undergo thermal elimination giving alkane- But quaternary ammonium hydroxide having no -hydrogen on reduction gives a hydrocarbon- When benzyl quaternary ammonium salt is heated with a strong base like NaNH2- rearrangement takes place-Which of the following give CH3- CH -CH2 on heating-

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Classification of Amines

Quaternary am...

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Quaternary ammonium hydroxide, nitro compounds and esters having at least one $β$ -hydrogen undergo thermal elimination giving alkane. But quaternary ammonium hydroxide having no $β$ -hydrogen on reduction gives a hydrocarbon. When benzyl quaternary ammonium salt is heated with a strong base like $N a N H_{2}$ , rearrangement takes place.
Which of the following give $C H_{3} - C H = C H_{2}$ on heating?

I, II and III

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I and II

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I and III

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III only

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