Question

Identify the incorrect match.

Name		IUPAC Official Name
A	Unnilunium	I	Mendelevium
B	Unniltrium	II	Lawrencium
C	Unnilhexium	III	Seaborgium
D	Unununnium	IV	Darmstadtium

• A. (a), (i)
• B. (b), (ii)
• C. (c), (iii)
• D. (d), (iv)

Answer 1

The Correct Option is D

To solve this question, we need to identify incorrect IUPAC matches for given element names. Let's analyze each option one by one:

1. Unnilunium
   • IUPAC Official Name: Unnilunium was the temporary systematic element name for Mendelevium.
   • This match is therefore correct.
2. Unniltrium
   • IUPAC Official Name: Unniltrium was the temporary systematic element name for Lawrencium.
   • This match is also correct.
3. Unnilhexium
   • IUPAC Official Name: Unnilhexium was the temporary systematic element name for Seaborgium.
   • This match is correct.
4. Unununnium
   • IUPAC Official Name: Unununnium was the temporary systematic element name for Roentgenium, not Darmstadtium.
   • Therefore, this match is incorrect.

Based on the analysis above, the incorrect match is for option D with the temporary name Unununnium incorrectly associated with Darmstadtium.

The correct answer is: (d), (iv).