if you are provided with three colourless solutions: dilNaOH, water &dil HCL then how will you identify water from them without tasting?
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By adding sodium in the first beakers if hydrogen gas evolve from sneaker then it contain hcl
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acids turn blue litmus red so0 this will help identify HCL
bases turnred litmus blue this will help identify NAoH
IN WATER Colour remains same
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