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Qualitative Analysis of Anions
Qualitative Analysis of Anions
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1)
Which of the following is an acid radical?
Cu²⁺
S²⁻
NH⁴⁺
Ca²⁺
2)
Which one of the following gas gives white fumes with hydrochloric acid?
Carbon dioxide
Ammonia
Sulphur dioxide
Hydrogen sulphide
3)
What is the chemical formula of lime water?
Ba(OH)₂
NaOH
Al(OH)₃
Ca(OH)₂
4)
Which of the following anion is detected by Brown ring test?
C₂O₄²⁻
NO₃⁻
CO₃²⁻
Br⁻
5)
Ester test is used to detect the presence of _____.
NO₂⁻
CH₃COO⁻
PO₄³⁻
SO₃²⁻
6)
Which one of the following gives dark violet sublimate in dry heating test?
Carbonate
Chloride
Iodide
Bromide
7)
Which one of the following gas turns the starch paper orange –yellow?
NO₂ gas
Cl₂ gas
Br₂ gas
HCl gas
8)
Which one of the following gas turns lead acetate paper black?
NH₃ gas
H₂S gas
SO₂ gas
CH₃COOH vapours
9)
Which of the following salt produces burning sulphur like smell when heated in a dry test tube?
Sulphite
Oxalate
Sulphate
Sulphide
10)
Which one of the following gas turns ferrous sulphate solution black?
Br₂ gas
Cl₂ gas
NO₂ gas
CO₂ gas
11)
Which one of the following ion does not decolourise the potassium permanganate solution in presence of dilute sulphuric acid?
Chloride ion
Nitrate ion
Oxalate ion
Bromide ion
12)
Which of the following is used to test the presence of sulphur dioxide gas?
Lead acetate paper
Starch paper
Starch – iodide paper
Acidified potassium dichromate paper