Free Printable Thories of acids and bases

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Thories of acids and bases

Total questions: 25

Worksheet time: 25mins

Name

Class

Date

According to which theory is a base a substance which produces OH- ions in water?

Arrhenius

Bronsted-Lowry

Lewis

According to Bronsted-Lowry acid base theory, an acid is a.....

Proton donor

Proton acceptor

Produces H+ when added to water

Made of H+

According to Lewis acid-base theory, a Lewis base is.....

an electron pair acceptor

an electron pair donor

an oxidising agent

a reducing agent

According to Arrhenius acid-base theory, an acid is....

an H+ acceptor

a H+ donor

a substance that produces H+ in water

anything with an H+

Which reactant in the following equation is a Bronsted acid?

ammonium

ammonia

hydroxide

water

Which reactant in the following equation is a Bronsted acid?

Water

Hydrogen chloride

Hydronium

Chloride

What is the conjugate acid in the following equation?

PO₄^3-

HNO₃

NO₃^-

HPO₄^2-

What is the conjugate base in the following reaction?

HCO₃^-

HCl

H₂CO₃

^Cl-

HSO₄^-(aq)+H₂O(l) → H₃O⁺(aq)+SO₄^2-(aq)
Identify the Acid in the above reaction.

HSO₄^-

H₂O

H₃O⁺

SO₄^2-

10.

CO₃^2-(aq)+H₂O(l) → HCO₃^-(aq)+OH^-(aq)
Using the above reaction, which compound is the conjugate base?

CO₃^2-

H₂O

HCO₃^-

OH^-

11.

Which statement about bases and alkalis is true?

All bases are alkalis and all alkalis are bases

All bases are not alkalis but all alkalis are bases

All bases are acids and all acids are bases

None of the above

12.

Which acid is the strongest?

Hydrochloric Acid

Ethanoic acid

13.

Which ion determines a base?

H⁺

OH^-

OH⁺

CO_3^2-

14.

A sour taste is a characteristic of:

acids

bases

neutral

pH scale

15.

According to Arrhenius, what is the definition of an ACID?

a substance that contains hydroxide and ionizes to produce OH-

a substance that contains hydrogen and ionizes to produce H+

a substance that contains hydrogen and ionizes to produce OH-

a substance that contains hydroxide and ionizes to produce H+

16.

If a solution is basic which ion will be more present?

H+

K+

OH-

H-

17.

_____ a substance that can both accept and donate a proton or H

acid

base

buffer

amphiprotic

18.

_____ has pH in between 6-2

acid

base

buffer

amphiprotic

19.

an acid that yields a H+ ions per acid molecule

diprotic

monoprotic

buffer

amphiprotic

20.

an acid that yields two H+ ions per acid molecule.

diprotic

monoprotic

buffer

amphiprotic

21.

This has a property of corresive

acid

base

buffer

amphiprotic

22.

Based on the picture water is a

acid

base

neutral

amphiprotic

23.

the ion H3O+, consisting of a protonated water molecule and present in all aqueous acids.

acid

base

hydronium ion

amphiprotic

24.

_____ reaction is when an acid and a base react to form water and a salt

equilibrium

Neutralization

buffer solution

amphiprotic

25.

A bronsted lowry base

produces hydroxide ions in a solution

is a proton donor

produces hydrogen ions in a solution

is a proton acceptor

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Thories of acids and bases

Total questions: 25

Worksheet time: 25mins

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