"aqua regia" composition ?

general knowledge science & technology

  1. nitric acid (3)+hydrochloric acid(1)

  2. nitric acid (1)+hydrochloric acid(3)

  3. nitric acid (3)+sulphuric acid(1)

  4. hydrochloric acid (3)+sulphuric acid(1)

Show answer
Correct Option: A

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