Differentiate between a physical change and a chemical change. Give examples to

Question

Differentiate between a physical change and a chemical change. Give examples to substantiate your answer. [5 MARKS]

Answer:
:
Differences with examples: 5 Marks

\begin{matrix} P h y s i c a l & C h e m i c a l C o m p o s i t i o n o f t h e s u b s t a n c e d o e s n o t & C o m p o s i t i o n o f t h e s u b s t a n c e c h a n g e s . c h a n g e . M o s t c h a n g e s a r e r e v e r s i b l e . & M o s t c h a n g e s a r e i r r e v e r s i b l e . N o n e w s u b s t a n c e s a r e f o r m e d, e . g, & N e w s u b s t a n c e s a r e f o r m e d, e . g, I c e \to W a t e r \to S t e a m & B u r n i n g o f P a p e r \to A s h e s F o r e x a m p l e, m e l t i n g o f i c e, d i s s o l v i n g s a l t i n & F o r e x a m p l e, r u s t i n g o f i r o n, d e c a y o f f o o d w a t e r P h y s i c a l c h a n g e s a r e t h o s e c h a n g e s w h i c h & C h e m i c a l c h a n g e s i n v o l v e c h a n g e i n c h e m i c a l i n v o l v e c h a n g e i n o n l y p h y s i c a l p r o p e r t i e s l i k e, & p r o p e r t i e s o f t h e s u b s t a n c e s a n d c h a n g e i n c o l o r, s i z e, s h a p e a n d s t a t e o f s u b s t a n c e s e t c . & c h e m i c a l c o m p o s i t i o n a l s o . \end{matrix}

Was this answer helpful ?

Next Question

More Questions on This Topic :

Question 1. Which of the following methods are used to prevent rusting of iron?....

Question 2. The process of obtaining large crystals of pure salt from sea water is known as ______.....

Question 3. Which of the following is a chemical change?....

Question 4. Curdling of milk is a chemical change.....

Question 5. Why is rusting of iron objects faster in the rainy season than in summer season?....

Question 6. A blacksmith grinds the edges of an iron axe against a spinning wheel to sharpen it. Sparks of fire and heat are generat....heat are generated. We can say that it is a:

Question 7. What happens when magnesium oxide is dissolved in water?....

Question 8. Chemical changes are mostly irreversible.....

Question 9. Which of the following changes indicate that a chemical change has not been taken place?....

Question 10. Name two conditions which are essential for rusting. Write the chemical equation for rusting of Iron. [2 MARKS]....

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI

Tabulation - Test Paper 2 Data Interpretation Reasoning & DI

Test Paper 1 Direction Sense Test Reasoning & DI

ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0

GFM Combined 1 Free Revision Test SAIL JO E-0