Question

The reaction between carboxylic acid and pcl5 2

Answer 1

Answer:

CH3COOH + PCl5 ----> Ch3CoCl + PCl3

(OH- will be removed from acid and replaced by cl-)

Answer 2

The reaction between carboxylic acid and pcl5 forms acetyl chloride and phosphorous oxychloride.

Explanation:

• The reaction of acetic acid and phosphorous pentachloride takes place as follows:
• $CH3COOH +PCL5 ---- CH3COCl + POCl3 + HCl$
• The formation of acetyl chloride takes place.
• In this reaction the -COOH is converted to form -COCl.
• The other products formed are phosphorous oxychloride along hydrochloric acid.
• Phosphorous penta chloride is a solid which reacts with carboxylic acid in which strong acidic fumes of hydrogen chloride are obtained.
• In this reaction the liquid mixture forms acyl chloride and a phosphorous trichloride.
• The acyl chloride can be separated by the process of fractional distillation.