MDCAT Chemistry MCQ #5389

During the laboratory preparation of Boric acid, Borax is treated with a concentrated mineral acid like HCl. What is the primary acidic product?

MDCAT Chemistry MCQ #5389

  1. Question 1

    Q1. During the laboratory preparation of Boric acid, Borax is treated with a concentrated mineral acid like HCl. What is the primary acidic product?

    • A) Boron trichloride
    • B) Sodium hydride
    • C) Metaboric acid
    • D) Orthoboric acid

    Answer: Orthoboric acid

    Explanation: Reaction of Borax with HCl yields Boric acid and NaCl; Boron trichloride is tempting but requires direct chlorination of Boron at high heat.