The addition of dilute NaOH to Cr 3+ salt solution will give:

Question

The addition of dilute NaOH to Cr 3+ salt solution will give: (A) a solution of [ Cr ( OH )4]- (B) precipitate of Cr 2 O 3( H 2 O ) n  (C) precipitate of [ Cr ( OH )6]3- (D) precipitate of Cr ( OH )3

Tardigrade Admin · Accepted Answer

Cr3+ + undersetdil.NaOH → underset textPrecipitateCr2O3.(H2O)n

Q. The addition of dilute $N a O H$ to $C r^{3 +}$ salt solution will give:

a solution of $[C r (O H)_{4}]^{-}$

precipitate of $C r_{2} O_{3} (H_{2} O)_{n}$

precipitate of $[C r (O H)_{6}]^{3 -}$

precipitate of $C r (O H)_{3}$

$C r^{3 +} + d i l . N a O H \to Precipitate C r_{2} O_{3} . (H_{2} O)_{n}$

Q. The addition of dilute NaOH to Cr3+ salt solution will give:

a solution of [Cr(OH)4​]−

precipitate of Cr2​O3​(H2​O)n​

precipitate of [Cr(OH)6​]3−

precipitate of Cr(OH)3​