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Solutions question

2025 · 8 Apr · Shift 2 · Q6
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Solutions question

2025 · 8 Apr · Shift 2 · Q6

JEE MainChemistrySolutionsMCQ+4 / −1
HA(aq)⇌H+(aq)+A−(aq)\mathrm{HA}(a q) \rightleftharpoons \mathrm{H}^{+}(a q)+\mathrm{A}^{-}(a q)HA(aq)⇌H+(aq)+A−(aq) The freezing point depression of a 0.1 m aqueous solution of a monobasic weak acid HAHAHA is 0.20 °C. The dissociation constant for the acid is Given: KfK_fKf​(H2OH_2OH2​O) = 1.8 K kg mol−1, molality ≡ molarity
  1. A
    1.90×10−31.90 \times 10^{-3}1.90×10−3
  2. B
    1.38×10−31.38 \times 10^{-3}1.38×10−3
  3. C
    1.1×10−21.1 \times 10^{-2}1.1×10−2
  4. D
    1.89×10−11.89 \times 10^{-1}1.89×10−1
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