Match the precipitates listed in column-I with their suitable solvents listed in column-II.
Column I | Column II | ||
(precipitate) | (solvent) | ||
(a) | AgCl↓ (white) | (p) | Concentrated HCl. |
(b) | CuS↓ (black) | (q) | Dilute ammonia solution (excess). |
(c) | Zn(OH)2↓ (white) | (r) | Potassium cyanide solution. |
(d) | BaCO3↓ (white) | (s) | Hot 50% nitric acid. |
(t) | Sodium hydroxide solution. |
Text Solution
Verified by ExpertsA
(A - p,q,r ; B - r,s ; C - p,q,r,s,t ; D - p,s)
Sol. AgCl ↓ + Cl – 
[AgCl 2 ] – soluble complex.
AgCl ↓ + 2NH 3 
[Ag(NH 3 ) 2 ] + + Cl –
AgCl ↓ + 2CN – 
[Ag(CN) 2 ] – + Cl –
AgCl is insoluble in dilute HNO 3 .
2CuS ↓ + 8CN – 
2[Cu(CN) 4 ] 3– + S 2 2– .
3CuS ↓ + 8HNO 3 
3Cu 2+ + 6NO 3 – + 3S ↓ + 2NO + 4H 2 O
S ↓ + 2HNO 3 
2H + + SO 4 2– + 2NO
Zn(OH) 2 ↓ + 2H + 
Zn 2+ + 2H 2 O
Zn(OH) 2 ↓ + 4NH 3 
[Zn(NH 3 ) 4 ] 2+ + 2OH –
Zn(OH) 2 ↓ + 2OH – 
[Zn(OH) 4 ] 2–
Zn(OH) 2 ↓ + 2KCN 
K 2 [Zn(CN) 4 ] + 2HCN
BaCO 3 + 2H + 
Ba 2+ + CO 2 + H 2 O
BaCO 3 is slightly soluble in solution of ammonium salts of strong acids only.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems