Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5
Banner 6
Banner 7
Banner 8

Q.

Is it true that both physical and chemical changes occur in the burning of a candle?


see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya

a

True

b

False  

answer is A.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

Detailed Solution

The above statement is true.
No new substance is formed in a physical change and it can be reversed. A new substance is formed in a chemical change and it cannot be reversed. When a candle is burning, the melting wax which comes at the sides of the candle can be collected and it will solidify on cooling. This wax can be used again. This is a physical change. The wax which is used up for burning produces new substances like carbon dioxide, water vapour, heat and light. This is a chemical change.  So, both physical and chemical changes occur in the burning of a candle.
 
Watch 3-min video & get full concept clarity

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon