Question

Assertion :Decomposition of hydrogen peroxide is an example of disproportionation reaction. Reason: In a disproportionation reaction, an element in one oxidation state is simultaneously oxidised and reduced.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

The oxidation states are
$2{\stackrel{+1}{H}}_2{\stackrel{-1}{O}}_{2(aq})\to 2{\stackrel{+1}{H}}_2{\stackrel{-2}{O}}_{\left(l\right)}+{\stackrel{0}{O}}_2(g)$
Oxidation State of Oxygen of peroxide increases to 0 from -1 in $O_2$ and decreases to -2 in $H_{2}O$..