0 votes 0 votes The $DCDA$ (Double Contact Double Absorption) process is used for the manufacture of urea sulphuric acid nitric acid ammonia Others gate2017 + – Milicevic3306 asked Mar 26, 2018 • edited Oct 15, 2020 by soujanyareddy13 Milicevic3306 7.9k points answer See all 0 reply