Amino acids are soluble in polar solvents due to their zwitterionic nature.
• Arginine is a polar amino acid and exists as a zwitterion in aqueous solutions.
• It is not soluble in nonpolar solvents like benzene.
• It has multiple pKa values, high melting point, and exists as a crystalline solid
The correct increasing order of stability of the complexes based on \( \Delta \) value is:
Match List-I with List-II: List-I
List I (Molecule) | List II (Number and types of bond/s between two carbon atoms) | ||
A. | ethane | I. | one σ-bond and two π-bonds |
B. | ethene | II. | two π-bonds |
C. | carbon molecule, C2 | III. | one σ-bonds |
D. | ethyne | IV. | one σ-bond and one π-bond |
Let $ P_n = \alpha^n + \beta^n $, $ n \in \mathbb{N} $. If $ P_{10} = 123,\ P_9 = 76,\ P_8 = 47 $ and $ P_1 = 1 $, then the quadratic equation having roots $ \alpha $ and $ \frac{1}{\beta} $ is: