MCQ
$2.0\,molar$ solution is obtained , when $ 0.5\,mole$ solute is dissolved in
  • A
    $250\,ml$ solvent
  • B
    $250\,g$ solvent
  • $250\,ml$ solution
  • D
    $1000\,ml$ solvent

Answer

Correct option: C.
$250\,ml$ solution
c
(c) We know that

Molarity $ = \frac{{{\rm{Number\,of \, moles\,  of \, solute}}}}{{{\rm{Volume\,of\, solution\, in }}litre}}$

$\therefore 2.0 = \frac{{0.5}}{{{\rm{Volume\,  of\,  solution\,  in}}\,\,litre}}$

Volume of solution in litre $ = \frac{{0.5}}{{2.0}} = 0.250\,litre = 250\,ml.$

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