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Asked: 2020-11-23T10:22:05+00:00 In:

Anaerobic bacteria digest animal waste and produce biogas (Change – A). The biogas is then burnt as fuel (Change – B). The following statements pertain to these changes. Choose the correct one.

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Poll Results

100%(i) Process – A is a chemical change. ( 1 voter )
0%(ii) Process – B is a chemical change.
0%(iii) Both processes A and B are chemical changes.
0%(iv) None of these processes is a chemical change.
Based On 1 Vote

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NCERT Solutions for Class 7 Science Chapter 6
Important NCERT Questions
7th Chapter 6 Physical and Chemical Changes
NCERT Books for Session 2022-2023
CBSE Board and State Board
Questions No: 12

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    1 Answer

    1. (iii) Both processes A and B are chemical changes.

      https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-6/

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