The most abundant element in the earth's atmosphere is
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Which of the following is a natural polymer?
In the reaction H2O2 + Cl2 -----> 2HCl + O2, H2O2 acts as
Which is the most economical method of removing solid matter from water?
Atomic number of which of the following elements is greater than that of Fluorine?
What is the reaction between an acid and a base called?
Terylene is a condensation polymer of ethylene glycol and which acid?
Molybdenite is an ore/mineral of
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