A beaker contains 1.0 M NaOH(aq) solution. To produce a NaOH(aq) solution of molar concentration 0.20 M, we transfer 2.0 ml (cm^3) out of this beaker into a 25 ml cylinder and add distilled water until the total volume reading becomes A) 12ml
B)10ml
C)8ml
D)5ml
E)2ml

B) 10 ml

Explanation:

According to the dilution law,

where,  

= molarity of  stock solution = 1.0 M

= volume of stock solution = 2.0 ml  

= molarity of dilute  solution = 0.20 M

= volume of diluted solution = ?

Putting in the values we get:

Therefore, final volume reading is 10 ml

diaria maybe go see a doctor about that