Which of the following is not true for transition metals?
- AThey are malleable and ductile
- BThey have high boiling and melting points
- CThey crystallize with body-centred cubic and hexagonal close-packed structures only
- DThey show variable oxidation states although not always
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Similar Questions
The electronic configuration of copper $({_{29}}Cu)$ is
The atomic radius of elements of which of the following series would be nearly the same?
Easy
View SolutionWhich of the following factors may be regarded as the main cause of lanthanide contraction?
Ferrous ion changes to $X$ ion upon reacting with acidified hydrogen peroxide. The number of $d$-electrons present in $X$ and its magnetic moment (in $BM$) are,respectively:
Observe the following statements:
$a$) The basic strength of $Lu(OH)_3$,$Gd(OH)_3$ and $Ce(OH)_3$ follows the order: $Ce(OH)_3 > Gd(OH)_3 > Lu(OH)_3$
$b$) $O^{2-}$,$N^{3-}$,$F^{-}$ and $Na^{+}$ are isoelectronic species
$c$) The sizes of $Zr$ and $Hf$ are approximately the same
The correct statements are:
$a$) The basic strength of $Lu(OH)_3$,$Gd(OH)_3$ and $Ce(OH)_3$ follows the order: $Ce(OH)_3 > Gd(OH)_3 > Lu(OH)_3$
$b$) $O^{2-}$,$N^{3-}$,$F^{-}$ and $Na^{+}$ are isoelectronic species
$c$) The sizes of $Zr$ and $Hf$ are approximately the same
The correct statements are:
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