PMDC Verified Question 49 of 83
Zwitter ions is also called?
A
Double salt
B
Internal salt
C
Basic salt
D
Acidic salt
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Internal salt
Concept:

A zwitterion is a molecule that contains an equal number of positively and negatively charged functional groups, resulting in a net charge of zero.

Solution:

  • Amino acids form zwitterions when the acidic carboxyl group donates a proton to the basic amino group within the same molecule.


  • Because this acid-base neutralization reaction occurs entirely within a single molecule, forming a dipolar ion, it is commonly referred to as an internal salt.


Why other options are incorrect:

A double salt involves two different crystalline salts. Basic and acidic salts refer to inorganic salts formed from incomplete neutralization.

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