A plastic which cannot be softened by heat is described a...
A plastic which cannot be softened by heat is described as
thermosetting
non-biodegradable
thermoplastic
malleable
Correct answer is A
No explanation has been provided for this answer.
The main impurity in iron ore during the extraction of iron is ...
The two functional groups in the above compound are ...
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Lead and tin are the components of ...
Which of the following hydrocarbons is not likely to be present in petrol? ...
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Which important nitrogen-containing compound is produced in Haber's process? ...