Blacksmith grinds edges of iron axe against a spinning wheel to sharpe – McqOptions

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1.	Blacksmith grinds edges of iron axe against a spinning wheel to sharpen it. Sparks of fire and heat is generated. On the basis of this statement choose the correct answer.
A.	It is a physical change as only shape of axe changes.
B.	It is a chemical change as heat is generated.
C.	It is chemical change as iron turns into new metal.
D.	None of these.
Answer» B. It is a chemical change as heat is generated.

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