Question

please tell me ri8 option of question 15 and also type its reason because on internet there are diff correct options and diff reasons and i coudnot understand?​

Answer 1

Organic compound exhibit positive Fehling test as well as iodoform test

Answer➡️A:Methanal

Reason✔️The iodoform test depends mainly on methyl(CH3 besides C=O) fragment being present ,since long this fragment gets converted into bright yellow iodoform precipitate and that is the signature of positive observation.

Since Methanal has the property of CH3 group it will give positive iodofrom test and no other compound have this property above given

and with respect to fehlings test

Whem Methanaldehyde on warming with the fehlings solution gives red precipitate of copper oxide and this indication gives you that methanal will give both positive test for iodoform as well as fehings test

Hope it helps you ✌️