Chapter 18: Qualitative Analysis

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1. Which test is used for anions?

A Flame test

B Precipitation test

C Density test

D Ignition test

2. Which observation confirms ammonium ion?

A Pop sound

B White precipitate

C Pungent smell of ammonia

D Green flame

3. Which ion is basic in nature?

A Cl⁻

B SO₄²⁻

C NH₄⁺

D CO₃²⁻

4. Which ion produces a green flame?

A Cu²⁺

B Na⁺

C Ca²⁺

D K⁺

5. Which gas turns potassium dichromate paper green?

A CO₂

B NH₃

C SO₂

D H₂

6. Which precipitate dissolves in ammonia solution?

A BaSO₄

B AgCl

C CaCO₃

D PbSO₄

7. Which gas is evolved when carbonate reacts with acid?

A NH₃

B CO₂

C SO₂

D H₂

8. Which test identifies functional groups by reactions?

A Qualitative analysis

B Quantitative analysis

C Volumetric analysis

D Gravimetric analysis

9. White precipitate with silver nitrate indicates which ion?

A SO₄²⁻

B CO₃²⁻

C Cl⁻

D NO₃⁻

10. Which test is commonly used to identify metal ions?

A Litmus test

B Flame test

C Iodine test

D Biuret test

Chapter 18: Qualitative Analysis

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