Which of the following reagents reacts differently with CH ₃ CHO , HCHO , and C ₆ H ₅ CHO , forming a distinct type of product in each case?

Step-by-step solution

Ammonia reacts differently with the given aldehydes to form distinct types of products: With formaldehyde ( HCHO ), it forms hexamethylenetetramine (urotropine), a complex cyclic compound: 6 HCHO + 4 NH ₃ ( CH ₂)₆ N ₄ + 6 H ₂ O With acetaldehyde ( CH ₃ CHO ), it forms an addition product, acetaldehyde ammonia: CH ₃ CHO + NH ₃ CH ₃ CH ( OH ) NH ₂ With benzaldehyde ( C ₆ H ₅ CHO ), it forms hydrobenzamide, a complex imine: 3 C ₆ H ₅ CHO + 2 NH ₃ ( C ₆ H ₅ CH )₃ N ₂ + 3 H ₂ O Phenylhydrazine forms phenylhydrazones wit