MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryMole _ Equivalent ConceptAtomic Theory

If water sample are taken from sea, rivers or lake, they will be found to contain hydrogen and oxygen in the approximate ratio of 1:8. This indicates the law of:

A.Multiple proportion
B.Definite proportion✓ Correct
C.Reciprocal proportions
D.None of these
Explanation

The  law  of  definite  proportion  states  that  a  given chemical  compound  always  contains  its  component elements in a fixed ratio (by mass) and this ratio does not  change  if  we  change  the  source  or  method  of preparation.  In  all  the  water  samples,  taken  from  the sea,  rivers,  lakes  or  snow-capped  mountains,  the hydrogen  and  oxygen  ratio  is  constant,  clearly demonstrating the law of definite proportions.

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