Question

5. Which substance is a weak electrolyte? B ОН IZ

Answer 1

5. Which substance is a weak electrolyte?

Hi please consider following chart depicts the influence of certain functional groups which can be electron donating or electron withdrawing.

Most Activating -Ö: -İR Strongly Activating -OH NH :O: Activating - NHCR EDG Moderately Activating O -OOR ortho / para directing -R Weakly Activating C=CR Reference ] Weakly Deactivating CNR Moderately Deactivating EWG -COR Deactivating — COH meta directing —001 -CF3 -CEN Strongly Deactivating O=v=O S-OH -NH NR Most Deactivating

Electron withdrawing order found for present problem: -NHR < -OH < -COR < -CONHR

Amide can behave as an acid in the given set due to resonance. Oxygen is more electronegative than carbon atom and pulls the bonding pair of caroxyl group in amide (option C), then lone pair of electrons on Nitrogen atom can participate and forms a double bond with carbon atom. Now Nitrogen atom is positively charge, hence it will easily lose proton as (H+), hence acidic, electrolyte. The same type of thing will also happen in option b, where adjacent methylene group will lose a proton and behaves as electrolyte. But there is no such resonance seen in option a.

OH w IZ: (A) one recomane (cosas energens No Resonance (weak electrolyte) (B) TOH COH + H (moderate electrolyte) re * get a good opines 562) 10:0 (strong electolyte)

Hope this helped you!

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