Question

The following diagram displays a chemical reaction. Observe it carefully and answer the following questions :

(a) Identify the type of chemical reaction that will take place and define it. How will the colour of the salt change ?
(b) Write the chemical equation of the reaction that takes place.
(c) Mention one commercial use of this salt.


CBSE Class X Science SA 2 (3 Marks)

Answer 1

Answer:

hey mate repost your question with a diagram....so i can see the diagram and able to help you dear mate....✔✔

Answer 2

Hey Dear,

(a) Photochemical decomposition -

• A single compound is decomposed into simple substances in presence of light.
• Colour of salt changes from white to grey.

(b) Chemical equation -

• Photochemical decomposition of silver chloride gives silver metal with chlorine gas.

2AgCl --> 2Ag + Cl2

(c) Commercial use of silver chloride -

1. Electrode in electrochemical cell
2. Screen in black & white photography
3. Antidote for mercury poisoning

Hope this helps you...