Observe the following two changes. Change A: Biogas is produced by decomposition of animal and plant waste by anaerobic bacteria. Change B: Biogas is burnt as other fuels. Which of these is a chemical change?
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In the above question, both are chemical changes.
Explanation:
As we already know, chemical changes are changes which can not be reversed back. Here in Change A production of biogas will be a chemical change as we can not bring back animal and plant waste back from biogas. And in Change B, burning is a chemical change, anything which burns can't be reverted back. Hope this helps you and have a nice day/night :)
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