Oxidation state of $\mathrm{Fe}$ in ${\mathrm{Fe}}_3{\mathrm{O}}_4$ is:

Important Questions on Redox Reactions

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COMEDK UGET

IMPORTANT

Chemistry Crash Course COMEDK UGET>Chapter 8 - Redox Reactions>Exercise 1>Q 23

The oxidation state of $\mathrm{S}$ in Caro's acid (permono sulphuric acid) ${\mathrm{H}}_2{\mathrm{SO}}_5$ is: 

EASY

COMEDK UGET

IMPORTANT

Chemistry Crash Course COMEDK UGET>Chapter 8 - Redox Reactions>Exercise 1>Q 24

In a reaction between zinc and iodine, zinc iodide is formed as the product, what is being oxidised?

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COMEDK UGET

IMPORTANT

Chemistry Crash Course COMEDK UGET>Chapter 8 - Redox Reactions>Exercise 1>Q 117

Which of the following reactions is an example of a redox reaction?          

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COMEDK UGET

IMPORTANT

Chemistry Crash Course COMEDK UGET>Chapter 8 - Redox Reactions>Exercise 1>Q 118

Which is the best description of the behaviour of bromine in the reaction given below?
${\mathrm{H}}_2\mathrm{O} + {\mathrm{Br}}_2\underset{}{\overset{ }{\to }} \mathrm{HOBr} + \mathrm{HBr}$                               

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COMEDK UGET

IMPORTANT

Chemistry Crash Course COMEDK UGET>Chapter 8 - Redox Reactions>Exercise 1>Q 119

Which of the following chemical reactions depicts the oxidizing behaviour of ${\mathrm{H}}_2{\mathrm{SO}}_4$?
                                                                                                               

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COMEDK UGET

IMPORTANT

Chemistry Crash Course COMEDK UGET>Chapter 8 - Redox Reactions>Exercise 1>Q 120

When an elemental sulphur atom becomes a sulphide ion,

MEDIUM

COMEDK UGET

IMPORTANT

Chemistry Crash Course COMEDK UGET>Chapter 8 - Redox Reactions>Exercise 1>Q 121

The oxidation number of oxygen in ${\mathrm{KO}}_3,$ ${\mathrm{Na}}_2{\mathrm{O}}_2$ is:

EASY

COMEDK UGET

IMPORTANT

Chemistry Crash Course COMEDK UGET>Chapter 8 - Redox Reactions>Exercise 1>Q 122

The oxidation number of phosphorus in $\mathrm{Ba}({\mathrm{H}}_2{\mathrm{PO}}_2{)}_2$ is_________.