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CHEMISTRY IN SOCIETY: Fertilizers
ENVIRONMENTAL EDUCATION: Chemistry In Society - Extraction Of Metals
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Alkali metals and alkaline earth metals
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Identification Of Ions
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Salts
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Transition metals
MATTER - PROPERTIES AND TRANSFORMATION: Principles Of Chemistry - Formulae, Moles And Equations
MATTER: PROPERTIES AND TRANSFORMATION: Rates Of Reaction
MATTER: PROPERTIES AND TRANSFORMATION: Reversible Reactions
PRINCIPLES OF CHEMISTRY: Electrochemistry
PRINCIPLES OF CHEMISTRY: Gaseous State

5/75 MCQs for:

MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Identification Of Ions

To a test solution, add barium chloride solution and then add excess dilute hydrochloric acid or nitric acid.

If a white precipitate is formed which is insoluble in excess acid, then the substance contains a:

SO₃²⁻.

SO₄²⁻.

CO₃²⁻ or HCO₃⁻.

NO₃⁻.

Which anion, when tested with silver nitrate solution acidified with nitric acid, gives a yellow precipitate that is insoluble in both dilute and concentrated ammonia solution?

Sulfate (SO₄²⁻).

Iodide (I⁻).

Chloride (Cl⁻).

Bromide (Br⁻).

What is the colour of the flame produced by a lithium compound in a flame test?

Crimson red.

Lilac.

Brick-red.

Golden yellow.

What is the observation when dilute hydrochloric acid is added to a solution containing iodide ions, followed by a few drops of chlorine water and then shaking with tetrachloromethane (or hexane/cyclohexane)?

White precipitate forms.

Brown layer in organic layer.

Purple layer in organic layer.

Colourless solution in organic layer.

The flame coulour of Ca²⁺ is?

Apple-green.

Golden yellow.

Bluish-green.

Brick-red.