The additon of dilute NaOH to Cr3+ salt solution will give : (A) a solution of [Cr(OH)4]– (B) precip — JEE Mains Chemistry Past Papers Chemistry Question
Question
The additon of dilute NaOH to Cr3+ salt solution will give : (A) a solution of [Cr(OH)4]– (B) precipitate of [Cr(OH)6]3– (C) precipitate of Cr2O3(H2O)n (D) precipitate of Cr(OH)3 Cr3+ ds lkYV ds foy;u esa ruq NaOH dk ladyu nsxkA (1) [Cr(OH)4]– dk foy;u (2) [Cr(OH)6]3– dk vo{ksi (3) Cr2O3(H2O)n dk vo{ksi (4) Cr(OH)3 dk vo{ksi
Answer: C
💡 Solution & Explanation
Cr3+ NaOH Cr(OH)3 (Green ppt.)
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