Analytical ChemistryHard
Question
Select the correct statement with respect to Ca2+ ions.
Options
A.K2CrO4 gives white precipitate in the presence of acetic acid.
B.Potassium hexacyanidoferrate (II) solution gives white precipitate.
C.It gives lilac colour in Bunsen flame.
D.Prolonged passage of carbon dioxide gas through its aqueous solution produces white precipitate.
Solution
(A) No precipitate with K2CrO4 in acetic acid as its ksp is high.
(B) Ca2+ + 2K+ + [Fe(CN)6]4- → K2Ca[Fe(CN)6]↓ (white)
(C) It imparts brick red colour to Bunsen flame.
(D) Ca(HCO3)2 is formed which is water soluble.
(B) Ca2+ + 2K+ + [Fe(CN)6]4- → K2Ca[Fe(CN)6]↓ (white)
(C) It imparts brick red colour to Bunsen flame.
(D) Ca(HCO3)2 is formed which is water soluble.
Create a free account to view solution
View Solution FreeMore Analytical Chemistry Questions
Co2+ + KCN (not in excess) → precipitate.Select the correct statement(s) with respect to the precipitate....An aqueous solution contains both Al3+ & Zn2+.To this solution NH4OH is added in excess....Consider the following statements, S1 : Fe(OH)3 and Cr(OH)3 precipitates can be separated using NaOH + H2O2 but not by e...The addition of K2CO3 (aq) to the following solution is expected to produce a precipitate in every case but that one whi...Which of the following imparts green/apple green colour to the Bunsen flame ?...