Promoter used in NH‚Äö√á√â synthesis catalyst is$

1.	Promoter used in NH‚Äö√á√â synthesis catalyst is$
A.	K‚Äö√á√áO
B.	SiO‚Äö√á√â
C.	V‚Äö√á√áO‚Äö√á√ñ
D.	U‚Äö√á√áO‚Äö√á√â
Answer» D. U‚Äö√á√áO‚Äö√á√â

Discussion