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Q.
Which of the following, on heating with ammonia gives urotropin?
Rajasthan PMTRajasthan PMT 2009
Solution:
Formaldehyde on heating with ammonia to give urotropin. The chemical name of urotropin is hexa methylene tetra amine. $ 6HCHO+4N{{H}_{3}}\xrightarrow{{}}\underset{urotropin}{\mathop{{{(C{{H}_{2}})}_{6}}{{N}_{4}}}}\,+6{{H}_{2}}O $