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प्रश्न
______ are substances which can undergo chemical changes to produce certain materials.
पर्याय
Soaps
Fertilizers
Plastics
All the above
MCQ
रिकाम्या जागा भरा
उत्तर
Soaps, Fertilizers, Plastics are substances which can undergo chemical changes to produce certain materials.
shaalaa.com
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