The non-existant metal carbonyl among the following is (a) Cr(CO)6 (b) Mn(CO)5 (c) Ni (CO)4 The non-existant metal carbonyl among the following is (a) Cr(CO)6 (b) Mn(CO)5 (c) Ni (CO)4 December 4, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,