1
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

If first ionization enthalpies of elements X and Y are 419 kJ mol$$-$$1 and 590 kJ mol$$-$$1, respectively and second ionization enthalpies of X and Y are 3069 kJ mol$$-$$1 and 1145 kJ mol$$-$$1, respectively. Then correct statement is :

A
Both X and Y are alkaline earth metals
B
X is an alkali metal and Y is an alkaline earth metal
C
X is an alkaline earth metal and Y is an alkali metal
D
Both X and Y are alkali metals
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

The IUPAC name of an element with atomic number 119 is

A
ununennium
B
unnilennium
C
unununnium
D
ununoctium
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

Gadolinium has a low value of third ionisation enthalpy because of

A
small size
B
high exchange enthalpy
C
high electronegativity
D
high basic character
4
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
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
(B), (ii)
B
(C), (iii)
C
(D), (iv)
D
(A), (i)
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