Methane contributes towards global warming so it is called a _________________ gas.
Oxygen molecule is ______.
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Molybdenite is an ore/mineral of
_________ gets converted to phosgene, when exposed to sunlight.
Carnotite is an ore/mineral of _____.
_____ is the major component of natural gas.
What is used to prevent freezing of fuel in space crafts?
Which of the following gases is heavier than oxygen?
PET is a very familiar form of _____________. It is used for making bottles.
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