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-p-Block elements - I — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry-p-Block elements - I1 Mark
MCQ
Which one of the following is correct statement
  • A
    The hydroxide of aluminium is more acidic than that of boron
  • B
    The hydroxide of boron is basic, while that of aluminium is amphoteric
  • ✓
    The hydroxide of boron is acidic, while that of aluminium is amphoteric
  • D
    The hydroxide of boron and aluminium are amphoteric
✓

Answer

Correct option: C.
The hydroxide of boron is acidic, while that of aluminium is amphoteric
c
(c) $B{(OH)_3} \Rightarrow {H_3}B{O_3}$ Boric acid

$Al{(OH)_3} \Rightarrow {\rm{Amphoteric}}$

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