Identify the incorrect match:
| Name | IUPAC official name |
| (a) Unnilunium | (i) Mendelevium |
| (b) Unniltrium | (ii) Lawrencium |
| (c) Unnilhexium | (iii) Seaborgium |
| (d) Unununnium | (iv) Darmstaditum |
(d), (iv)
(a), (i)
(b), (ii)
(c), (iv)
Ununnunium is Roentgenium.
Therefore, Option(1) is correct.