Question

select the correct option A chemical change involvesसिलेक्ट कॉरेक्ट ऑप्शन ए केमिकल चेंज इन व ​

Answer 1

Answer:

This might help you

Explanation:

Indications of a chemical change

1. Gas bubbles appear

2. Formation of a precipitate

3. Colour Change

4. Temperature change

5. Production of light

6. Change in smell or taste

Answer 2

Answer:

A chemical change involves change in chemical properties of a substance. like sound is produced, heat is evolved, change of smell and colour etc.

For example: Rusting of Iron

When iron comes in contact with air and water the substance colour changes in reddish - brown and new substance formed is called Rust.

●● Iron + Air/ Water = Rust (New Subtance)