Verified Solution • 2025–26 Session moderate

QNEET-2013-Ch-1547: NEET 2013 Chemistry - Class 11 NEET-2013-Ch-1547 Solution: Accumulation of lactic acid (\(HC_3H_5O_3\)) a monobasic acid…

Accumulation of lactic acid (HC3H5O3HC_3H_5O_3) a monobasic acid in tissues leads to pain and a feeling of fatigue. In a 0.10 M aqueous solution lactic acid is 3.7% dissociates. The value of dissociation constant KaK_a for this acid will be 1.4×10−51.4 \times 10^{-5} 1.4×10−41.4 \times 10^{-4} 3.7×10−43.7 \times 10^{-4} 2.8×10−42.8 \times 10^{-4}

Multiple Choice Options

  • A 1.4 ×\times _ 10 −- _ 5
  • B 1.4 ×\times _ 10 −- _ 4
  • C 3.7 ×\times _ 10 −- _ 4
  • D 2.8 ×\times _ 10 −- _ 4

Step-by-Step Verified Solution

_ = K a c _ 0.037 = K a 0.10 _ K a = (0.037) 2 _ 0.10 = 1.37 _10 �4 _ 1.4 _ 10 _ 4

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