Free Printable Arrhenius and Brønsted-Lowry Testing pH

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Arrhenius and Brønsted-Lowry Testing pH

Total questions: 28

Worksheet time: 39mins

Name

Class

Date

NaOH is:

an Arrhenius base

an Arrhenius acid

neither an acid nor a base

both an acid and a base

An Arrhenius base:

donates H+

accepts H+

produces H+

produces OH-

An Arrhenius acid:

donates H+ to another substance

accepts H+ from another substance

produces H+

produces OH-

A hydrogen ion, H⁺, is the same as a(n):

neutron

electron

proton

hydroxide ion

Forms a OH- hydroxide ion

Lewis Base

Arrhenius Base

Bronsted Lowry Base

Bronsted Lowry Acid

The following statement is true for arrhenius acid and base EXCEPT

Arrhenius acid produces H⁺ ions

Arrhenius base produces OH^- ions

H₂O need to be present for arrhenius acid base to dissociate

Hydrogen atoms that make the solution acidic

A Bronsted Lowry base:

donates H+ to another substance

accepts H+ from another substance

produces H+

produces OH-

Which of the following does not describe an Arrhenius or Bronsted Lowry acid or base?

Produces H+

Produces OH-

Donates H+ to another substance

Donates OH- to another substance

The Acid-Base classification system that defined a __________ is any compound that can donate a proton (an H⁺ ion) to an appropriate acceptor. A _________ is a compound that can remove (or accept) a proton.

Bronsted-Lowry

Arrhenius acid-base

Lewis acid-base

Monoprotic and Polyprotic Acids

10.

The Acid-Base classification system that defined acids as those that release H⁺ and bases as release OH^- is known as ________.

Bronsted-Lowry

Arrhenius acid-base

Lewis acid-base

Monoprotic and Polyprotic Acids

11.

The Acid-Base classification system that defined any chemical species that accepts a pair of electrons as an acid, and a base is a chemical species that donates a pair of electrons.

Bronsted-Lowry

Arrhenius acid-base

Lewis acid-base

Monoprotic and Polyprotic Acids

12.

Accepts a pair of electrons

Lewis Acid

Lewis Base

Bronsted Lowry Acid

Arrhenius Base

13.

Lewis bases are defined as

H⁺ acceptors

electron pair acceptors

H⁺ donors

electron pair donors

14.

Classify the following molecule

Lewis Acid

Lewis Base

15.

Classify the following molecule

Lewis Acid

Lewis Base

16.

Which is the correct set of acid properties?

sour taste, corrosive, change litmus from red to blue

sour taste, corrosive, change litmus from blue to red

sweet taste, slippery, change litmus from blue to red

sour taste, slippery, change litmus from blue to red

17.

The following statement is true for Bronsted Lowry Conjugate Acid Base pair EXCEPT

Bronsted Lowry Acid is a proton donor

Bronsted Lowry Acid is a electron pair acceptor

Conjugate acid has 1 hydrogen atom more than base

Conjugate base has 1 hydroxide more than base

18.

Which of the following shows the correct conjugate acid base pair?

HCI (acid) / H₃O⁺ (conjugate base)

HCI (acid) / CI^- (conjugate base)

HCI (base) / CI^- (conjugate acid)

HCI (base) / H₃O⁺ (conjugate acid)

19.

Which of the following shows the correct conjugate acid base pair?

H₂O (base) / H₃O⁺ (conjugate acid)

H₂O (acid) / CH₃COO^- (conjugate base)

CH₃COOH (acid) / H₃O⁺ (conjugate base)

CH₃COOH (base) / CH₃COO^- (conjugate acid)

20.

Which of the following shows the correct conjugate acid base pair?

SO₃^2-(base) / HSO₃^- (conjugate base)

HPO₄^2- (acid) / HSO₃^-(conjugate base)

SO₃^2-(acid) / HSO₃^- (conjugate base)

HPO₄^2- (acid) / PO₄^3-(conjugate base)

21.

CH₃COOH dissociates partially and is reversible. Why?

CH₃COOH is a weak acid and H₃O⁺ is strong conjugate base

CH₃COO^- is a weak base and CH₃COOH is strong conjugate acid

CH₃COOH is weak acid and CH₃COO^- is strong conjugate base

CH₃COOH is a weak acid and CH₃COO^- is a weak conjugate base

22.

NH₃ dissociates partially and is reversible. Why ?

NH₃is a weak acid and NH₄⁺ is a strong conjugate base

NH₃is a weak base and NH₄⁺ is a conjugate acid

NH₄⁺ is a strong conjugate acid, donate H⁺ to form back NH₃

NH₃is a weak base and OH^- is a strong conjugate acid

23.

The following statement is true EXCEPT

Dissociation for strong acid is unidirectional

Dissociation for weak acid is reversible

Weak acid has a strong conjugate base

Strong acid has a weak conjugate base

24.

H₂O is amphiprotic, can act as acid or base. Which of the following is TRUE ?

H₂O is an acid because it is a proton donor

H₂O is an base because it is a proton acceptor

H₂O can gain or lose a proton, H⁺

H₂O can easily form hydronium ion, H₃O⁺

25.

The following statement is true for Lewis acid EXCEPT

Lewis acid are electrophiles

Lewis acid are proton acceptor

Lewis acid are electron pair acceptor

Lewis acid are electron deficient

26.

The following statement is true for Lewis bases EXCEPT

Lewis bases are nucleophiles

Lewis bases are proton donors

Lewis bases are electron pair donor

Lewis bases are electron rich

27.

The following is true for Lewis acid and base EXCEPT

BF₃ is a Lewis acid

NH₃ is Lewis base

BF₃ is a electron pair acceptor

NH₃ is a lone pair acceptor

28.

The following is true for Lewis acid and base EXCEPT

CO₂ is a Lewis acid

H₂O is Lewis base

CO₂ is a electron pair acceptor

H₂O is a lone pair acceptor

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Arrhenius and Brønsted-Lowry Testing pH

Total questions: 28

Worksheet time: 39mins

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