CrO_ 3 dissolves in aqueous NaOH to give - Vidyadip

MCQ

$CrO_ 3$ dissolves in aqueous $NaOH$ to give

A
$Cr_2O_7^{ - 2}$
✓
$CrO_4^{ - 2}$
C
$Cr(OH)_3$
D
$Cr(OH)_2$

✓

Answer

Correct option: B.

$CrO_4^{ - 2}$

b
$Cr{O_3} + {H_2}O \to {H_2}Cr{O_4}\xrightarrow{{2NaOH}}N{a_2}Cr{O_4} + 2{H_2}O$

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