NEET2020Chemistry-IUPAC Nomenclature
NEET 2020 Chemistry Element Naming MCQ Question
Type: MCQ-fact-Medium-Class 11
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
(c), (iii)
B
(d), (iv)
C
(a), (i)
D
(b), (ii)
Correct Answer
Option B
Detailed Explanation
The incorrect match in option B is that Unununnium (Uuu) is incorrectly paired with Darmstadtium (Ds). Unununnium is actually the IUPAC systematic name for element 111, which is known as Roentgenium (Rg). Darmstadtium (Ds) is the IUPAC name for element 110, making the pairing incorrect.
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