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NEST2012Chemistryp Block Elements (Group 13 & 14)

Boron is a fairly rare element. However, it has many important applications. It is a nonmetal and has a very high melting point of 2180^ C . It is extracted from borax and it forms a large number of electron deficient compounds. Choose the correct statement(s).

Options

  1. ABoron can form BF ₆³⁻ ion.
  2. BB ₂ O ₃ is a basic oxide.
  3. CAmorphous boron may be obtained by the reduction of B ₂ O ₃ at high temperature using sodium or magnesium.
  4. DCrystalline boron may be obtained by thermal decomposition of diborane ( B ₂ H ₆ ) .

Correct answer

D. Crystalline boron may be obtained by thermal decomposition of diborane ( B ₂ H ₆ ) .

Step-by-step solution

No solution available.

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