JEE Main · 2019 · Shift-ImediumDNF-256

The lanthanide ion that would show colour is: (1) Lu3+ (2) La3+ (3) Gd3+ (4) Sm3+

d & f-Block Elements · Class 12 · JEE Main Previous Year Question

Question

The lanthanide ion that would show colour is: (1) $\ce{Lu^3+}$ (2) $\ce{La^3+}$ (3) $\ce{Gd^3+}$ (4) $\ce{Sm^3+}$

Options

a
$\ce{Lu^3+}$
b
$\ce{La^3+}$
c
$\ce{Gd^3+}$
d
$\ce{Sm^3+}$
✓

Correct Answerd

$\ce{Sm^3+}$

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The lanthanide ion that would show colour is: (1) Lu3+ (2) La3+ (3) Gd3+ (4) Sm3+ (JEE Main 2019) | Canvas Classes