Question

CHAPTER BASED MCQs
11. Which one is incorrect among the following?
(a) MgO is used in formation of milk of magnesia.
(b) The chemical formula of rust is Fe2O3.
(c) Chemical change is permanent in nature.
(d) Physical change is always irreversible change.
12
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Answer 1

Answer:

Option D, Physical change is always irreversible change is a incorrect statement.

Explanation:

Physical changes that do not involvle change of state are always reversible.