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# What volume of water is required to make 0.2N solution from 1600ml of 0.205N solution ?

$(a)\;50ml\qquad(b)\;30ml\qquad(c)\;20ml\qquad(d)\;40ml$

Meq of conc. solution =$1600\times 0.2050$
$\Rightarrow 328$
Let after dilution volume becomes Vml
$328=0.20\times V$
$V=1640ml$
$\therefore$Volume of water used 1640-1600=40ml
Hence (d) is the correct answer.