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In an alkaline medium, glycine predominantly exists in a
Options
(a) cation
(b) anion
(c) zwitter ion
(d) covalent form
Correct Answer:
anion
Explanation:
In alkaline medium (high pH) amino acids exists as negatively charged particles (carboxyl group donates protons). H₂N – CH₂ – COOH → H₂N – CH₂ – COO⁻.
Related Questions: - Heat of combustion ΔH for C(s) , H₂(g)and CH₄(g) are -94, -68 and -213 kcal/mol.
- At 25⁰C, the dissociation constant of a base, BOH, is 1.0 ˣ 10⁻¹².
- In the photo-electron emission,the energy of the emitted electron is
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Topics: Biomolecules and Polymers
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Heat of combustion ΔH for C(s) , H₂(g)and CH₄(g) are -94, -68 and -213 kcal/mol.
- At 25⁰C, the dissociation constant of a base, BOH, is 1.0 ˣ 10⁻¹².
- In the photo-electron emission,the energy of the emitted electron is
- At 27⁰C average kinetic energy of one mole of helium gas can be given
- If the manufacture of bromine from sea water, the mother liquor containing bromides
Topics: Biomolecules and Polymers (88)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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