Glass is also called ________.
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Which gas contributes most to the Greenhouse effect?
____ is the most electropositive and ___ is the most electronegative element of the third period of modern periodic table.
What is dry ice?
Aromatic hydrocarbons contain at least _____ benzene like ring in their molecules.
In an acid base reaction which product is produced along with a salt?
The most abundant element in the earth's atmosphere is
In the reaction H2O2 + Cl2 -----> 2HCl + O2, H2O2 acts as
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