Q.The boiling point of a $0.2 \text{ mol kg}^{-1}$ solution of $X$ in water is greater than $100^{\circ}C$ . If the molal elevation constant of water is $0.52 \text{ K kg mol}^{-1}$ , the elevation in boiling point is:

0.104 \text{ K}

100.104 \text{ K}

0.52 \text{ K}

0.26 \text{ K}

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Q.The boiling point of a 0.2 mol kg−10.2 \text{ mol kg}^{-1}0.2 mol kg−1 solution of XXX in water is greater than 100∘C100^{\circ}C100∘C. If the molal elevation constant of water is 0.52 K kg mol−10.52 \text{ K kg mol}^{-1}0.52 K kg mol−1, the elevation in boiling point is: