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Chapter 16: Physical & Chemical Changes - Science Mcqs for Grade 7
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Chapter 16: Physical & Chemical Changes - Science Mcqs for Grade 7
>> Other than carbon and hydrogen, finished plastic may contain
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CBSE MCQs
Q. Other than carbon and hydrogen, finished plastic may contain
a.
nitrogen and phosphorus
b.
nitrogen and oxygen
c.
sulphur and iron
d.
magnesium and nitrogen
ANSWER: nitrogen and oxygen
Answer & Explanation
No explanation is available for this question!
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