MCQ
The linkage present in salvarsan is …………….
  • A
    $- N = N -$
  • $-A s=A s-$
  • C
    $- S - S -$
  • D
    $- O - O -$

Answer

Correct option: B.
$-A s=A s-$
(B) $-A s=A s-$

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