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8.3. Organic chemistry purification and characterization — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry8.3. Organic chemistry purification and characterization1 Mark
MCQ
The correct match between items $I$ and $II$ is
Item $-I$ (Mixture) Item $-II$ (Separation method)
$(a)$ $H_2O :$ Sugar $p.$ Sublimation
$(b)$ $H_2O :$ Aniline $q.$ Recrystallization
$(c)$ $H_2O :$ Toluene $r.$ Stem distillation
  $s.$ Differential extraction
  • A
    $a - d, b -r, c -p$
  • ✓
    $a -q, b -r, c -s$
  • C
    $a -r, b -p, c -s$
  • D
    $a -q, b -r, c -p$
✓

Answer

Correct option: B.
$a -q, b -r, c -s$
b
(mixture) $\quad\quad\quad\quad$ (seperation method)

$H _2 O : \text { Sugar } \Rightarrow \text { Recrystallization }$

$H _2 O : \text { Aniline } \Rightarrow \text { Steam distillation }$

$H _2 O \text { : Toluene } \Rightarrow \text { Differential extraction }$

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