Question 1

If you replace one -OH group in H2SO4 with -CCl3,

Accepted Answer

A)  the resulting acid, H(CCl3)SO3 is weaker than H2SO4. 
B)  the resulting acid, H(CCl3)SO3 is stronger than H2SO4 
C)  we cannot say anything about the acidity of the new compound relative to H2SO4. 
A)  the resulting acid, H(CCl3)SO3 is weaker than H2SO4. 
B)  the resulting acid, H(CCl3)SO3 is stronger than H2SO4 
C)  we cannot say anything about the acidity of the new compound relative to H2SO4. B

Question 2

Which of the following general reactions illustrates displacement reaction?

Accepted Answer

A)  A-B → A + :B. 
B)  A-B + A'-B' → A-B' + A'-B. 
C)  A-B + B' → A-B' + B. 
A)  A-B → A + :B. 
B)  A-B + A'-B' → A-B' + A'-B. 
C)  A-B + B' → A-B' + B. C

Question 3

Find the weakest aqua acid among these three: [Fe(H2O)6]3+, [Zn(H2O)6]2+ and [Mg(H2O)6]2+

Accepted Answer

A)  [Fe(H2O)6]3+ 
B)  [Zn(H2O)6]2+ 
C)  [Mg(H2O)6]2+ 
A)  [Fe(H2O)6]3+ 
B)  [Zn(H2O)6]2+ 
C)  [Mg(H2O)6]2+ C

Question 4

"An adduct or complex is formed from a Lewis acid as an electron pair donor and Lewis base as an electron pair acceptor." This statement is

Accepted Answer

A)  incorrect: the definition of Lewis acids and bases is inversed. 
B)  correct as is. 
C)  incorrect: acid-base reactions are neutralization reactions. 
A)  incorrect: the definition of Lewis acids and bases is inversed. 
B)  correct as is. 
C)  incorrect: acid-base reactions are neutralization reactions.

Question 5

Find the correct statement:

Accepted Answer

A)  Hard cations with high charge and small radius form stable compounds with hard anions. 
B)  Hard anions are formed by elements found at the bottom right of the periodic table. 
C)  Soft cations have closed shell electronic configuration. 
A)  Hard cations with high charge and small radius form stable compounds with hard anions. 
B)  Hard anions are formed by elements found at the bottom right of the periodic table. 
C)  Soft cations have closed shell electronic configuration.

Question 6

Which of the following statement(s) is/are correct?
(i) HClO4 is an example of an oxoacid.
(ii) H3PO4 is a diprotic acid.
(iii) Distribution diagrams relate pH with pKa of a polyprotic acid.

Accepted Answer

A)  Only statement (i) 
B)  Statements (i) and (iii) 
C)  Statements (ii) and (iii). 
A)  Only statement (i) 
B)  Statements (i) and (iii) 
C)  Statements (ii) and (iii).

Question 7

Consider a solvent AB that undergoes autoionization to produce AB2- and A+ ions. Then the correct definition of acids and bases in this solvent would be:

Accepted Answer

A)  An acid would increase the concentration of A+ while a base would increase the concentration of AB2-. 
B)  An acid would increase the concentration of AB2- while a base would increase the concentration of A+. 
C)  The definition cannot be provided without knowing the exact nature of A and B. 
A)  An acid would increase the concentration of A+ while a base would increase the concentration of AB2-. 
B)  An acid would increase the concentration of AB2- while a base would increase the concentration of A+. 
C)  The definition cannot be provided without knowing the exact nature of A and B.

Question 8

Find a correct statement:

Accepted Answer

A)  If HA is a strong acid, then A- is its weak conjugate base. 
B)  If HA is a strong acid, then A- is its strong conjugate base. 
C)  If HA is a weak acid, then A- is its weak conjugate base. 
A)  If HA is a strong acid, then A- is its weak conjugate base. 
B)  If HA is a strong acid, then A- is its strong conjugate base. 
C)  If HA is a weak acid, then A- is its weak conjugate base.

Question 9

Which of the following compounds can act as Lewis acids: (i) SO2 (ii) SnCl3- (iii) B(OH)3 and (iv) CF4

Accepted Answer

A)  (i) and (ii). 
B)  (i) and (iii). 
C)  (ii), (iii) and (iv). 
A)  (i) and (ii). 
B)  (i) and (iii). 
C)  (ii), (iii) and (iv).

Question 10

Each time the pH of a solution goes up one pH unit, the concentration of H3O+ ions goes ____ by a factor of ______.

Accepted Answer

A)  up, 10 
B)  down, 10 
C)  down, 100 
A)  up, 10 
B)  down, 10 
C)  down, 100

If you replace one -OH group in H₂SO₄ with -CCl₃,

Which of the following general reactions illustrates displacement reaction?

Find the weakest aqua acid among these three: [Fe(H₂O)₆]³⁺, [Zn(H₂O)₆]²⁺ and [Mg(H₂O)₆]²⁺

"An adduct or complex is formed from a Lewis acid as an electron pair donor and Lewis base as an electron pair acceptor." This statement is

Find the correct statement:

Which of the following statement(s) is/are correct? (i) HClO₄ is an example of an oxoacid. (ii) H₃PO₄ is a diprotic acid. (iii) Distribution diagrams relate pH with pK_a of a polyprotic acid.

Consider a solvent AB that undergoes autoionization to produce AB₂^- and A⁺ ions. Then the correct definition of acids and bases in this solvent would be:

Find a correct statement:

Which of the following compounds can act as Lewis acids: (i) SO₂ (ii) SnCl₃^- (iii) B(OH)₃ and (iv) CF₄

Each time the pH of a solution goes up one pH unit, the concentration of H₃O⁺ ions goes by a factor of __.

Atomic Structure

Molecular Structure and Bonding

Molecular Symmetry

The Structures of Simple Solids

Oxidation and Reduction

An Introduction to Coordination Compounds

Physical Techniques in Inorganic Chemistry

Periodic Trends

Hydrogen

The Group 1 Elements

The Group 2 Elements

The Group 13 Elements

The Group 14 Elements

The Group 15 Elements

The Group 16 Elements

The Group 17 Elements

The Group 18 Elements

The D-Block Elements

The D-Metal Complexes: Electronic Structure and Spectra

Coordination Chemistry: Reactions of Complexes

D-Metal Organometallic Chemistry

The F-Block Metals

Materials Chemistry and Nanomaterials

Green Chemistry

Biological Inorganic Chemistry

Inorganic Chemistry in Medicine

Filters

Exam 5: Acids and Bases

If you replace one -OH group in H2SO4 with -CCl3,

Which of the following general reactions illustrates displacement reaction?

Find the weakest aqua acid among these three: [Fe(H2O)6]3+, [Zn(H2O)6]2+ and [Mg(H2O)6]2+

"An adduct or complex is formed from a Lewis acid as an electron pair donor and Lewis base as an electron pair acceptor." This statement is

Find the correct statement:

Which of the following statement(s) is/are correct? (i) HClO4 is an example of an oxoacid. (ii) H3PO4 is a diprotic acid. (iii) Distribution diagrams relate pH with pKa of a polyprotic acid.

Consider a solvent AB that undergoes autoionization to produce AB2- and A+ ions. Then the correct definition of acids and bases in this solvent would be:

Find a correct statement:

Which of the following compounds can act as Lewis acids: (i) SO2 (ii) SnCl3- (iii) B(OH)3 and (iv) CF4

Each time the pH of a solution goes up one pH unit, the concentration of H3O+ ions goes ____ by a factor of ______.

Atomic Structure

Molecular Structure and Bonding

Molecular Symmetry

The Structures of Simple Solids

Oxidation and Reduction

An Introduction to Coordination Compounds

Physical Techniques in Inorganic Chemistry

Periodic Trends

Hydrogen

The Group 1 Elements

The Group 2 Elements

The Group 13 Elements

The Group 14 Elements

The Group 15 Elements

The Group 16 Elements

The Group 17 Elements

The Group 18 Elements

The D-Block Elements

The D-Metal Complexes: Electronic Structure and Spectra

Coordination Chemistry: Reactions of Complexes

D-Metal Organometallic Chemistry

The F-Block Metals

Materials Chemistry and Nanomaterials

Green Chemistry

Biological Inorganic Chemistry

Inorganic Chemistry in Medicine

Filters

If you replace one -OH group in H₂SO₄ with -CCl₃,

Find the weakest aqua acid among these three: [Fe(H₂O)₆]³⁺, [Zn(H₂O)₆]²⁺ and [Mg(H₂O)₆]²⁺

Which of the following statement(s) is/are correct? (i) HClO₄ is an example of an oxoacid. (ii) H₃PO₄ is a diprotic acid. (iii) Distribution diagrams relate pH with pK_a of a polyprotic acid.

Consider a solvent AB that undergoes autoionization to produce AB₂^- and A⁺ ions. Then the correct definition of acids and bases in this solvent would be:

Which of the following compounds can act as Lewis acids: (i) SO₂ (ii) SnCl₃^- (iii) B(OH)₃ and (iv) CF₄

Each time the pH of a solution goes up one pH unit, the concentration of H₃O⁺ ions goes by a factor of __.