Assertion : Alpha (( ) )-amino acids exist as internal salt in solution as they have amino and carboxylic acid groups in near vicinity. Reason: ( H ⁺ )ion given by carboxylic group ((- COOH ) ) is captured by amino group ( (- NH ₂ ) ) having lone pair of electrons.

Step-by-step solution

( NH ₂- CH ₂- COOH ) is a typical ( )-amino acid. In solution it exists as, internal salt or Zwitter ion, ( ( ⁺ NH ₃- CH ₂- COO ⁻ ) ) because the proton ( ( H ⁺ ) )of ( COOH ) group is captured by (- NH ₂ ) group as ( NH ₂ ) has a lone pair of electrons on ( N ) atom.