Which is not true for arginine?
Biomolecules · Class 12 · JEE Main Previous Year Question
Which is not true for arginine?
- a
It is a crystalline solid.
- b
It is associated with more than one values.
- c
It has a fairly high melting point.
- d✓
It has high solubility in benzene.
It has high solubility in benzene.
Step 1: Amino Acid Properties — As zwitterionic compounds, amino acids like arginine exist as internal salts. They are generally crystalline solids with high melting points.
Step 2: Solubility Trends — Due to their ionic/polar nature, amino acids are soluble in polar solvents (like water) and insoluble in non-polar solvents (like benzene).
Step 3: Result — Claiming high solubility in benzene is incorrect for a polar amino acid. Thus, (d) is not true.
Key Point: Arginine contains a guanidino side chain, making it one of the most basic amino acids.
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