Solutions Part 2

Section: Chemistry

Question : 30 of 86

Marks: +1, -0

1.24g‌of ‌AX2 (molar mass 124gmol−1 ) is dissolved in 1 kg of water to form a solution with boiling point of 100.0156∘C, while 25.4 g of AY2 (molar mass 250gmol−1 ) in 2 kg of water constitutes a solution with a boiling point of 100.0260∘C.
Kb(H2O)=0.52K‌kg‌mol−1
Which of the following is correct?

[29 Jan 2025 Shift 1]

AX2 and AY2 (both) are fully ionised
AX2 is fully ionised while AY2 is completely unionised
AX2 and AY2 (both) are completely unionised
AX2 is completely unionised while AY2 is fully ionised

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