Curriculum
Course: EST 2 Chemistry
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Curriculum

EST 2 Chemistry

Structure of Matter

0/11

States of Matter

0/7

Reaction Types

0/9

Stoichiometry

0/7

Equilibrium and Reaction Rates

0/7

Thermochemistry

0/5

Descriptive Chemistry

0/7

Laboratory Skills

0/5
Quiz

Oxidation and reduction – Check yourself

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Oxidation and reduction EST Chemistry check yourself quiz: free practice for EST 2 Chemistry. Work through this Oxidation and reduction EST Chemistry check yourself quiz and get instant feedback on every answer. If you get stuck, review the 3.2 Oxidation and reduction lesson. More practice: EST 2 Chemistry — all units. Syllabus: OpenStax free science textbooks.

  • Questions count: 10
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
Oxidation number of S in H2SO4
+4
+6
−2
+2
2.
In a voltaic cell, oxidation occurs at the
cathode
anode
salt bridge
wire
3.
A reducing agent
gains electrons
is reduced
loses electrons
is always oxygen
4.
Which change is reduction?
Fe → Fe3+
Cl2 → 2Cl−
Na → Na+
Cu → Cu2+
5.
Which statement best describes Oxidation?
A cell that converts chemical energy into electrical energy spontaneously.
The species that is reduced and causes oxidation.
Loss of electrons; oxidation number increases.
The charge an atom would have if all bonds were ionic.
6.
Which statement best describes Reduction?
Loss of electrons; oxidation number increases.
An equation showing only oxidation or only reduction.
Gain of electrons; oxidation number decreases.
The species that is reduced and causes oxidation.
7.
Which statement best describes Oxidizing agent?
The species that is oxidised and causes reduction.
Using electricity to drive a non-spontaneous reaction.
An equation showing only oxidation or only reduction.
The species that is reduced and causes oxidation.
8.
Which statement best describes Reducing agent?
The charge an atom would have if all bonds were ionic.
An equation showing only oxidation or only reduction.
A cell that converts chemical energy into electrical energy spontaneously.
The species that is oxidised and causes reduction.
9.
Which statement best describes Oxidation number?
Gain of electrons; oxidation number decreases.
A cell that converts chemical energy into electrical energy spontaneously.
Loss of electrons; oxidation number increases.
The charge an atom would have if all bonds were ionic.
10.
Which statement best describes Half-reaction?
An equation showing only oxidation or only reduction.
A cell that converts chemical energy into electrical energy spontaneously.
The species that is oxidised and causes reduction.
The charge an atom would have if all bonds were ionic.
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Part of Reaction Types — see every lesson and quiz in this unit.
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