EasyChemistry
+4 / -1
The name ‘Rare earths’ is used for -
A
Lanthanides only
B
Actinides only
C
Both lanthanides and actinides
D
Alakaline earth metals
Previous
From the list given below, elements which belongs to the same group or sub-group
NextThere are 10 neutrons in the nucleus of the element zM19. It belongs to -
More from Periodic Table
Hard
(A), (B) and (C) are elements in the second short period. Oxide of (A) is ionic, that of (B) is amph
HardThe basic character of MgO, SrO, K₂O and NiO increases in the order -
HardArrange into the order of increasing basicity (NO₂, K₂O, ZnO) -
HardArrange the following hydrides in their increasing acid strength [CH₄, H₂S, PH₃ and SiH₄] -
HardConsider the M(OH)₃ formed by all the group 13 elements. The correct sequence of acidic strength of
HardThe correct order regarding the electro-negativity of hybrid orbitals of carbon is ?
Practice Chemistry Exams
Full-length mock tests with detailed analytics, rank, and percentile.
Browse Exams