MCQ
On moving down a group of regular elements, both atomic and ionic radii increases with increasing
- ✓Atomic number
- BAtomic weight
- CAtomic mass
- DNone of these
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$C{H_3} - C \equiv N\xrightarrow[{E{t_2}O}]{{C{H_3}Mgl}}\xrightarrow{{{H_3}{O^ \oplus }}}$
$n = 4$______________
$n = 3$______________
$n = 2$ _____________
$n = 1$______________
$X + C{r_2}{O_3}\xrightarrow{\Delta }Y$ (Green coloured)
$X$ and $Y$ are
(At. nos. $Ce = 58, Sm = 62,$$ Eu = 63, Yb = 70$)