Question

distinguish between propane and propanal

Answer 1

Answer:

Propanal is an aldehyde but propane is an alkane. To distinguish between these two compounds, Tollen's reagent is added. Aldehydes give silver mirror when Tollen's reagent is put into it and alkanes does not give any silver mirror.

Explanation:

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Answer 2

Answer:(i) Propanal and propanone :

(i) Propanal and propanone :Propanal gives silver mirror test with Tollen's reagent. Propanone does not gives this test.

(i) Propanal and propanone :Propanal gives silver mirror test with Tollen's reagent. Propanone does not gives this test.Propanal gives red ppt with Fehlings solution but propanone does not give this test.

(i) Propanal and propanone :Propanal gives silver mirror test with Tollen's reagent. Propanone does not gives this test.Propanal gives red ppt with Fehlings solution but propanone does not give this test.(ii) Acetophenone and Benzophenone :

(i) Propanal and propanone :Propanal gives silver mirror test with Tollen's reagent. Propanone does not gives this test.Propanal gives red ppt with Fehlings solution but propanone does not give this test.(ii) Acetophenone and Benzophenone :Acetophenone gives yellow ppt of idoform with alkaline solution of iodine (iodoform test) and Benzophenone doe not give this test.

(i) Propanal and propanone :Propanal gives silver mirror test with Tollen's reagent. Propanone does not gives this test.Propanal gives red ppt with Fehlings solution but propanone does not give this test.(ii) Acetophenone and Benzophenone :Acetophenone gives yellow ppt of idoform with alkaline solution of iodine (iodoform test) and Benzophenone doe not give this test.(iii) Phenol and Benzoic acid :

(i) Propanal and propanone :Propanal gives silver mirror test with Tollen's reagent. Propanone does not gives this test.Propanal gives red ppt with Fehlings solution but propanone does not give this test.(ii) Acetophenone and Benzophenone :Acetophenone gives yellow ppt of idoform with alkaline solution of iodine (iodoform test) and Benzophenone doe not give this test.(iii) Phenol and Benzoic acid :Phenol does not react with sodium hydrogen carbonate and benzoic acid gives effervescence of carbon dioxide gas upon reaction with sodium hydrogen carbonate.

(i) Propanal and propanone :Propanal gives silver mirror test with Tollen's reagent. Propanone does not gives this test.Propanal gives red ppt with Fehlings solution but propanone does not give this test.(ii) Acetophenone and Benzophenone :Acetophenone gives yellow ppt of idoform with alkaline solution of iodine (iodoform test) and Benzophenone doe not give this test.(iii) Phenol and Benzoic acid :Phenol does not react with sodium hydrogen carbonate and benzoic acid gives effervescence of carbon dioxide gas upon reaction with sodium hydrogen carbonate.Phenol gives violet colour with ferric chloride solution but benzoic acid does not give such colour.

Explanation:

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