The maximum fixation of solar energy is done by
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Which of the following is used in gunpowder?
Which one of the following nonmetals shows allotropy in the liquid state?
Which of the following elements has the lowest melting point?
The Chemical formula of Acetic acid is _____.
Glass is also called ________.
............ element is represented by the given symbol.
Limestone is a raw material used by which industry?