In which of the following mixtures summation of molarity of cation(s) in the resulting solution is less than 1?

In which of the following mixtures summation of molarity of cation(s)

1.	In which of the following mixtures summation of molarity of cation(s) in the resulting solution is less than 1?
Answer» `NHO_(3)(0.1 M,10 ML) + NaOH (1 M, 10 mL)` `NHO_(3)` (0.1 M, 10mL)+`(NHO_(3)` (1.1 M, 10 mL) NaOH (4%(w/w), 10 mL sp.gr.=1.2) + NaOH [4% (w/w) , 10mL, sp.gr.=12] `AgNO_(3)` (1M, 10 mL) + NaCl(2M, 10 mL) Answer :A::B