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Exploring Lewis Acid-Base Theory

Authored by Afework Mekonnen

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12th Grade

Exploring Lewis Acid-Base Theory
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a Lewis acid?

A Lewis acid is a substance that increases pH.

A Lewis acid is an electron pair donor.

A Lewis acid is a proton donor.

A Lewis acid is an electron pair acceptor.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a Lewis base?

A Lewis base is an electron pair acceptor.

A Lewis base is a proton donor.

A Lewis base is an electron pair donor.

A Lewis base is a substance that increases the concentration of hydroxide ions.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do Lewis acids and bases differ from Brønsted acids and bases?

Lewis acids accept electron pairs; Brønsted acids donate protons.

Lewis acids are always neutral; Brønsted acids are always charged.

Lewis acids and bases are defined by their solubility in water; Brønsted acids and bases are not.

Lewis acids donate electrons; Brønsted acids accept protons.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Provide an example of a Lewis acid.

Aluminum chloride (AlCl3)

Potassium hydroxide (KOH)

Hydrochloric acid (HCl)

Sodium chloride (NaCl)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Provide an example of a Lewis base.

Sodium Chloride (NaCl)

Water (H2O)

Ammonia (NH3)

Carbon Dioxide (CO2)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of electron pairs in Lewis acid-base reactions?

Lewis acids accept protons without involving electron pairs.

Electron pairs are irrelevant in chemical reactions.

Electron pairs are donated by Lewis bases to Lewis acids, forming coordinate covalent bonds.

Electron pairs are only involved in ionic bonds.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the concept of Lewis acid-base adducts.

Lewis acid-base adducts are only found in gaseous states.

Lewis acid-base adducts involve the loss of an electron pair from the acid.

Lewis acid-base adducts are formed by the reaction of two Lewis acids.

Lewis acid-base adducts are complexes formed by the reaction of a Lewis acid and a Lewis base, involving the donation of an electron pair from the base to the acid.

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