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6.2. Equilibrium - II (icon Equilibrium) — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry6.2. Equilibrium - II (icon Equilibrium)1 Mark
MCQ
For the following two acid-base reactions, which statement is True ?

$(I){\mkern 1mu} C{H_3}CH_2^ - {\mkern 1mu}  + {\mkern 1mu} \mathop {C{H_3}N{H_2}}\limits_{p{K_a} = 35}  \rightleftharpoons \mathop {C{H_3}C{H_3}}\limits_{p{K_a} = 50}  + C{H_3}N{H^ - }$

$(II){\mkern 1mu} {F^ - }{\mkern 1mu}  + {\mkern 1mu} \mathop {{H_2}O}\limits_{p{K_a} = 15.7}  \rightleftharpoons \mathop {HF}\limits_{p{K_a} = 3.2}  + H{O^ - }$

  • A
    $I$ is favoured to the right, $II$ is favoured to the left
  • B
    $I$ is favoured to the left, $II$ is favoured to the right
  • C
    $I$ is favoured to the right, $II$ is favoured to the right
  • D
    $I$ is favoured to the left; $II$ is favoured to the left
✓

Answer

$(a)$ Acid base reaction favours formation of weak acid & weak base.

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