Carbonyl Compounds: Complete the following mechanism involving 5-aminopentanal Draw a reasonable mechanism for this reaction with trace acid. Use another equivalent of the molecule acting as the acid/base.

2,3,4,5-tetrahydropyridine

Explanation:

The acid catalyzed intramolecular condensation reaction in 5-aminopentanal, betweenaldehydic group and amine results in the formation of imine by attack of lone pair of amine group into the carbonyl group of alddehyde, on acidic treatment it gives imine.

there's the proffessional site that will you.

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.