Consider the following changes:1. Curdling of milk2. Sublimation of camphor3. Drying of paint4. Oxidation of SO2 to SO3The chemical changes are:

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Consider the following changes:<br>1. Curdling of milk<br>2. Sublimation of camphor<br>3. Drying of paint<br>4. Oxidation of SO2 to SO3<br>The chemical changes are: