According to an early Indian philosopher everything is made up of ___ basic elements.
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Which of the following metals is the most Malleable?
What is an endothermic reaction?
The smell that we get when LPG cylinder leaks is due to the presence of
Atomic numbers of four elements are as follows : F(9), P(15), Cl(17), Ar(18). Which of the following two elements would be chemically similar?
Which of the following is NOT correctly matched?
___ is the transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase.
The chemical formula of Propane is
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