Which among the following is not an example of a reversible change? – McqOptions

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1.	Which among the following is not an example of a reversible change?
A.	Dissolving sugar in water.
B.	Changing of wheat to flour.
C.	Manganese dioxide and powdered carbon
D.	Melting of coaltar.
E.	None of these
Answer» C. Manganese dioxide and powdered carbon

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