Limestone is a raw material used by which industry?
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Give an example of a salt which gives an aqueous solution of pH less than 7.
Which of the following types of water is known to be absolutely free from any impurity?
______ character of a bond between two atoms is greater if the difference in their electro negativities is lesser.
Which gas contributes most to the Greenhouse effect?
What happens in an oxidation reaction?
Constantan is alloyed from ...... metals.
__________gives hardness to stainless steel.
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