Question

Describe an activity to show a decomposition reaction in which light is used to decompose a reactant. Write a chemical equation of the reaction and state its one use.

Answer 1

Vempati05

                 activity:-

Procedure:-

•take about 2g silver chloride in a china dish.

•place the China dish in front of sunlight for some time

•observe the colour of the sunlight

•you will observe that white silver chloride turns into grey in presence of sunlight

chemical equation is in below

sunlight

2Agcl(s)------------>2Ag(s)+Cl2(g)

Answer 2

Answer:

A decomposition reaction is a type of chemical reaction that produces two or more products from a single reactant.

Explanation:

The activity to show a decomposition reaction in which light is used to decompose a reactant is as follows below:

Procedure:-

1. Place 2 grams of silver chloride in a china dish.
2. Keep the china dish exposed to sunlight for a while.
3. Pay attention to the color of the sunlight
4. You'll see that when exposed to sunlight, white silver chloride becomes grey.

The decomposition reaction of silver chloride is as follows below:

           2AgCl(s)  →  2Ag↓ (s) + $Cl_{2}$ (g)

The use of this reaction is the extraction of metals from their ores.

#SPJ2