Question

which of the following is physical change

a- burnig of magnisium
b- rusting of iron
c- dissolving sugar in water
d- formation of compound from its element​

Answer 1

✅YOUR ANS IS C...!

EXPLANATION:

➡️ as the change can be reversed.

Answer 2

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$\huge{\fcolorbox{white}{pink}{QUESTION:}}$

which of the following is physical change

a- burnig of magnisium

b- rusting of iron

c- dissolving sugar in water

d- formation of compound from its element

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$\huge{\fcolorbox{white}{aqua}{Answer:}}$

bit:- C (dissolving sugar in water) is physical change.

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$\huge{\fcolorbox{white}{yellow}{ADDITIONAL-INFORMATION:}}$

➡️A physical change is a change to the physical—as opposed to chemical—properties of a substance. They are usually reversible.

➡️Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.

➡️In a physical change appearance or form changes, but substance remains same.

➡️Common Physical Changes are:-

• Texture:-The texture of a substance can differ with a physical change.

• Color:- The changing of color of a substance is not necessarily an indicator of a chemical change.

• Temperature:- Although we cannot see temperature change, unless if a change of state is occurring, it is a physical change.

• Shape.

➡️Eg:- Ice on melting converts to water. Water on evaporation converts to water vapor. All the products formed are still forms of water. Hence, this is a physical change.

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