CTET 2 Math and Science 24 Dec 2021 Paper
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Question : 64 of 150
Marks:
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Identify which of the following are chemical change(s)
(A) Tarnishing of a silver cup
(B) Sublimation of naphthalene balls
(C) Electrolysis of water
(D) Condensation of steam
(E) Drawing of wire of aluminium
(A) Tarnishing of a silver cup
(B) Sublimation of naphthalene balls
(C) Electrolysis of water
(D) Condensation of steam
(E) Drawing of wire of aluminium
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