Redox Reactions Quiz

Froggy Jumps

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Test your knowledge on redox reactions and their principles in this engaging quiz game!

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Dhevira af

Indonesia

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Redox Reactions Quiz


Froggy Jumps Redox Reactions QuizOnline version Test your knowledge on redox reactions and their principles in this engaging quiz game! by Dhevira af 1 What does 'redox' stand for? a Reduction-Oxidation-Exchange b Reduction-Oxidation c Reactivity-Oxidation 2 In a redox reaction, what is oxidized? a The substance that gains electrons b The substance that loses electrons c The solvent 3 What is the role of a reducing agent? a It accepts electrons b It donates electrons c It stabilizes the reaction 4 Which element is commonly involved in redox reactions? a Oxygen b Argon c Helium 5 What is the oxidation state of oxygen in most compounds? a +1 b 0 c -2 6 What happens to the oxidation state of a substance that is reduced? a It decreases b It increases c It remains the same 7 What is a half-reaction in redox chemistry? a A reaction without electrons b A complete redox equation c An equation showing either oxidation or reduction 8 Using Stock notation, represent the compound MnCl4 a Mn(II)Cl4 b Mn(III)Cl4 c Mn(IV)Cl4 9 What is the oxidation number of Mn in K2MnO4? a -5 b +5 c +6 10 In which compound is the oxidation number of nitrogen +5? a Ca(NO3)2 b Mg3N2 c NaNO2 11 answer this correctly a Na b O c Cl 12 answer this correctly a magnesium acts as oxidising agent b hydrogen molecules act as reducing agent c hydrogen ion acts as oxidising agent 13 Which of the following is an example of reduction? a Al3+ → Al b Si4- → Si4+ c Cr → Cr3+ 14 Which of the following is neither oxidation nor reduction? a Al3+ → Al b Si4− → Si4− c Cr → Cr3+ 15 answer this correctly a The oxidization state for Al is 0. b In Al2O3 the oxidation states are −3 and +2. c In Fe2O3 the oxidation states are +3 and −2. 16 answer this correctly a Mg gains 2 electrons b Mg loses 2 electrons c umm i dont know 17 27. What is a half-reaction of this equation, Na + Cl → NaCl? a Cl + e− → Cl− b Cl + e− → Cl c Na → Na + e− 18 answer this a H b O c C 19 What is the oxidation number of chromium in Cr2O72− ion? a +3 b +6 c +7 20 Assertion (A): Hydrogen reacts with oxygen to form water is a redox reaction. Reason (R): Hydrogen acts as an oxidising agent and oxygen as reducing agent. a Both Assertion and Reason are correct statements b Both Assertion and Reason are NOT correct statements c Assertion is correct but Reason is wrong statement.

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Redox Reactions Quiz

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Redox Reactions QuizOnline version

by Dhevira af

What does 'redox' stand for?

In a redox reaction, what is oxidized?

What is the role of a reducing agent?

Which element is commonly involved in redox reactions?

What is the oxidation state of oxygen in most compounds?

What happens to the oxidation state of a substance that is reduced?

What is a half-reaction in redox chemistry?

Using Stock notation, represent the compound MnCl4

What is the oxidation number of Mn in K2MnO4?

In which compound is the oxidation number of nitrogen +5?

answer this correctly

answer this correctly

Which of the following is an example of reduction?

Which of the following is neither oxidation nor reduction?

answer this correctly

answer this correctly

27. What is a half-reaction of this equation, Na + Cl → NaCl?

answer this

What is the oxidation number of chromium in Cr2O72− ion?

Assertion (A): Hydrogen reacts with oxygen to form water is a redox reaction. Reason (R): Hydrogen acts as an oxidising agent and oxygen as reducing agent.