Q13 / 160 · AP EAMCET 2023 (18 May Shift 2) · Chemistry

Observe the following species $$ \mathrm{AlCl}_3, \mathrm{NH}_3, \mathrm{H}^{+}, \mathrm{Co}^{3+},-{ }^{-} \mathrm{OH}, \mathrm{Mg}^{2+}, \mathrm{BF}_3, \mathrm{Cl}^{-} $$ How many Lewis acids are present in the above list?

  • Correct answer
    A
    5
  • B
    4
  • C
    2
  • D
    3

Solution

Lewis acids $=\mathrm{AlCl}_3, \mathrm{H}^{+}, \mathrm{Co}^{3+}, \mathrm{Mg}^{2+}, \mathrm{BF}_3$.

Hence, the correct answer is option: 'A'.

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