Multiple choice

Which of the following statements is incorrect?

  1. Boron halides are all monomeric, while those of Al are dimeric.

  2. Boron halides and aluminium halides exist as monomeric halides.

  3. Boron halides and aluminium halides are Lewis acids.

  4. B2O3 is acidic oxide, while Al2O3 is amphoteric oxide.

  5. Boron nitride is called inorganic graphite.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Incorrect statement. Trihalides of boron are monomeric whereas halides of aluminium like AlCl3 exist as dimers, i.e. -Al2Cl6.

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