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Formation of Precipitate

Give two char...

Question

Give two characteristics of the chemical reaction which occurs on adding potassium iodine solution to lead nitrate solution.

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Solution

$2 K I + P b (N O_{3})_{2} \to 2 K N O_{3} + P b I_{2}$

1. A yellow precipitate is formed due to the formation of lead iodide

2. There will be a change in colour (from colourless to yellow).

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(a) Give one example of a chemical reaction.

(b) State two characteristics of the chemical reaction which takes place when dilute sulphuric acid is poured over zinc granules.

(c) Give two characteristics of the chemical reaction which occurs on adding potassium iodide solution to lead nitrate solution.

Q. (a) What happens when potassium iodide solution is added to lead nitrate solution? Give equation of the reaction involved. What type of reaction is represented by this example?
(b) Give one example of another reaction which is of the same type as the above reaction.

Q. Chemical equation for the reaction between lead nitrate & potassium iodine solution.(with their state of matter)

Q. Write word-equation and balanced chemical equation for the following reactions. (i) Formation of hydrogen chloride from hydrogen and chlorine gas. (ii) Lead nitrate solution reacts with potassium iodide solution to give lead iodide and potassium nitrate.

Q. Which one of the following chemical reaction is NOT suitable in the school laboratory to verify the law of conservation of mass:
a) Mixing Hydrochloric acid and Sodium hydroxide solutions
b) Mixing Potassium iodine and Lead nitrate solutions
c) Thermal decomposition of Potassium chlorate.

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