6×10⁻²
4×10⁻⁴
16×10⁻⁴
4×10⁻²
Correct option is A. 6×10⁻²
Given that
ΠXY = 4 × ΠBaCl₂
Since both are ionic solute, i.e.
XY → X⁺ + Y⁻ ⇒ i = 2
BaCl₂ → Ba²⁺ + 2Cl⁻ ⇒ i = 3
Now using the law,
Π = i × CRT ⇒ 2 × [XY] = 4 × 3 × 0.01 (Assuming the same temperature)
[XY] = 0.06 M