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5/75 MCQs for:
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Identification Of Ions

To a test solid or solution, dilute hydrochloric acid or dilute nitric acid is added.

If effervescence is observed and a colourless gas is evolved which turns lime water milky, then the substance contains a:

How do you test for nitrate ions (NO₃⁻) using the brown ring test?
Which ion does NOT give a coloured precipitate with sodium hydroxide solution?
When an aqueous solution of sodium hydroxide is added to a solution containing Fe²⁺ ions, a precipitate forms. What is the effect of exposing this precipitate to air?
What is the colour of the precipitate formed when aqueous ammonia is added to a solution containing Fe³⁺ ions?