Match the anions with the changes observed on qualitative analysis :
Column-I | Column-II | ||
(a) | SO42– | (p) | Canary yellow ppt. with ammonium molybdate. |
(b) | NO3– | (q) | Brown ring test. |
(c) | NO2– | (r) | White ppt. with BaCl2 solution. |
(d) | PO43– | (s) | Yellow ppt. with AgNO3 solution. |
(t) | White ppt. with AgNO3 solution. |
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
- (r,t) ; - (q) ; - (q, t) ; - (p, r, s)
Sol. SO 4 2– ⇒ BaCl 2 + SO 4 2– ⎯→ BaSO 4 ↓ + 2Cl –
white ppt.
AgNO 3 + SO 4 2– ⎯→ Ag 2 SO 4 ↓
white ppt.
NO 3 – ⇒ NO 3 – + H 2 SO 4 + Fe 2+ ⎯→ Fe 3+ + 2NO + SO 4 2– + 4H 2 O Fe
2+ + NO + 5H 2 O ⎯→ 
brown ring complex
NO 2 – ⇒ NO 2 – gives brown test.
Ag + + NO 2 ⎯→ AgNO 2 ↓
white ppt.
PO 4 3– ⇒ PO 4 3– gives ammonium molybdate test.
Ag + + PO 4 3– ⎯→ Ag 3 PO 4 ↓
yellow ppt.
BaCl 2 + PO 4 3– ⎯→ Ba 3 (PO 4 ) 2 ↓
white ppt.
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