Chemistry
Grade-8
Easy
Question
Two colourless solutions X and V were mixed together. On mixing, a yellow precipitate Z was formed.
Identify the compounds X, Y and Z in the above reaction:
- X = sodium hydroxide solution Y = hydrochloric acid, Z = sodium chloride
- X = potassium hydroxide solution Y = nitric acid, Z = potassium nitrate
- X = potassium chloride Y = Water Z = chloride ion
- X = lead nitrate Y = potassium iodide solutions. Z =lead iodide.
Hint:
Lead gives yellow precipitation.
The correct answer is: X = lead nitrate Y = potassium iodide solutions. Z =lead iodide.
X = lead nitrate Y = potassium iodide solutions. Z =lead iodide.
- On mixing two colourless solutions-lead nitrate and potassium iodide together.
- A yellow precipitate of lead iodide was formed.
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