Multiple choice

Pure germanium is obtained by which of the following methods?

  1. Winkler's method

  2. Alexander's method

  3. Stock's method

  4. Merk's method

  5. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This option is correct because germanium oxide gives red heat in a current of H2 at 540oC, to give pure germanium.