The correct options are
A Manufacture of ammonia from nitrogen and hydrogen (Haber's process)
B Decomposition of water (acidulated)
C Hydrogenation of oils
D Decomposition of potassium chlorate (KClO3)
Habber's Process Catalyst −Fe Decomposition of water Catalyst - H2SO4 Hydrogenation of Oils Catalyst - Ni Decomposition of KClO3 Catalyst - MnO2