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Chemistry · 2026 · 1 mark
CBSE 2026 · Region 4 · Set 1 · Q7
The boiling point of one molal NaCl solution, assuming NaCl to be completely dissociated in water is: ( K_b. for water.=0.52 K kg mol^-1)
The boiling point of one molal NaCl solution, assuming NaCl to be completely dissociated in water is : $\displaystyle \left(\mathrm{K}_{\mathrm{b}}\right.$ for water $\displaystyle \left.=0.52 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right)$
Official answer
(B)
$\displaystyle 101 \cdot 04^{\circ} \mathrm{C}$
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CBSE Class 12 Chemistry past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.