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Biomolecules — Chemistry STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryBiomolecules1 Mark
MCQ
Which of the following molecules form a zwitter ion?
  • A
    $CH _3 COOCH _3$
  • ✓
    $H _2 NCH _2 COOH$
  • C
    $CH _3 COC _2 H _5$
  • D
    $CH _3 CH _2 COOH$
✓

Answer

Correct option: B.
$H _2 NCH _2 COOH$
(b) :$\underset{\text { (Amino acid) }}{\mathrm{H}_2 \mathrm{NCH}_2 \mathrm{COOH}} \longrightarrow \underset{\text { (Zwitter ion) }}{\mathrm{H}_3 \stackrel{+}{+} \mathrm{NCH}_2 \mathrm{COO}^{-}}$

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