Question

the....compound can citric acid on dehydration at 423 K ions used for essential and detection of OH NH and NH2 group​

Answer 1

Answer:

⇒ citric acid on dehydrating at 423k the compound formed is aconitic acid.

⇒the question is incomplete and i will give an attachment there u can find  

  full complete question.  

Explanation:

• The citric acid undergoes action of heat / dehydration at $175^{0} C$ / 273k
• Dehydration : the loss or removal of water from something.
• here citrice undergoes dehydration to form aconitic acid.
• reaction is shown in attachment!

Qeustion:

the ................. compound is formed on dehydrating citric acid at 423k and the ions released are essential for detection of OH,NH and NH2 group?