Solved: CHEMISTRY Question for NEET

NEET CHEMISTRYEasy

Identify the incorrect match regarding the IUPAC Official Name of the element:

Unnilunium $\rightarrow$ Mendelevium

Unniltrium $\rightarrow$ Lawrencium

Unnilhexium $\rightarrow$ Seaborgium

Unununnium $\rightarrow$ Darmstadtium

According to the IUPAC nomenclature for elements with atomic numbers > 100:

Unnilunium corresponds to atomic number 101 ( $1$ for un, $0$ for nil, $1$ for un). The official name is Mendelevium (Md). This match is correct.
Unniltrium corresponds to atomic number 103 ( $1$ for un, $0$ for nil, $3$ for tri). The official name is Lawrencium (Lr). This match is correct.
Unnilhexium corresponds to atomic number 106 ( $1$ for un, $0$ for nil, $6$ for hex). The official name is Seaborgium (Sg). This match is correct.
Unununnium corresponds to atomic number 111 ( $1$ for un, $1$ for un, $1$ for un). The official name is Roentgenium (Rg). Darmstadtium (Ds) corresponds to atomic number 110 (Ununnilium). Therefore, this match is incorrect.

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