Polluted water from the industry have a pH of 3. What can be used to neutralise the polluted water?

Solution P turned acidified potassium dichromate(VI) from orange to green. What does Solution P contain?

Aqueous sodium Hydroxide reacts with a metal ion producing a coloured precipitate. The colour of the Precipitate would change upon standing. What is the metal ion?

Which compound in solution produces a precipitate in ammonia and dissolves when an excess ammonia is added?

An Acid, T was added to a solution of nitrate of metal Y. A dense white precipitate was formed. What is T and Y?

Dilute sulfuric acid reacts with both Barium nitrate and lead(II) nitrate. In what two ways are the reactions the same?

Compound X reacts with some metals to liberate hydrogen and is used to make fertilizers. It gives a white precipitate when added to aqueous barium nitrate. What is X?

Which of the following is not an Amphoteric Acid?

Solution X forms a pale green ppt with excess aq NaOH. An alkaline gas is only given off when the mixture is warmed with powdered aluminium. Which ions does X contain?

What is a reagent used to test for halides?

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