Which of the following is not a Lewis acid?

A aluminium chloride
B sodium ion
C sulphur tetrafluoride
D hydroxide ion

Correct Answer: hydroxide ion

Lewis acids are molecules with an incomplete octet of central atoms like aluminium chloride, simple cations like sodium ion, and molecules in which the central atom has vacant d-orbital like sulphur tetrafluoride, but hydroxide ion is a negatively charged species. So it is not a Lewis acid.
Bissoy MCQ
#Class 11 Chemistry #Equilibrium #Acids, Bases and Salts

Related Questions

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B Binary distillation
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