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You can create printable tests and worksheets from these Grade 11 Oxidation-Reduction Reactions questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

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Consider the following redox reaction:

$H_2C_2O_4 (aq) + MnO_4^(-) (aq) rarr CO_2(g) + Mn^(2+) (aq)$

What is the reduction half reaction for this redox reaction?
1. $(Mn)^(7+) (aq) rarr Mn^(2+) (aq)$
2. $H_2C_2O_4 (aq) rarr CO_2(g)$
3. $(MnO_4)^(-) (aq) + 8H^(+) (aq) rarr Mn^(2+) (aq) + 4H_2O (l)$
4. $H_2C_2O_4 (aq) rarr 2CO_2 (g) + 2H^(+) (aq)$
Which chemical equation shows a redox reaction?
1. $CH_3COOH + NaOH -> CH_3COONa + H_2O$
2. $Cl^(-) + Ag^(+) ->AgCl darr$
3. $5Fe^(2+) + MnO_4^(1-) + 8H_3O^+ rArr6Fe^(3+) + Mn^(2+) + 12H_2O$
4. $HCl + NaOH -> NaCl + H_2O$
What represents the total oxidation state for an ionic compound?
1. It equals the charge of the cation.
2. It equals the charge of the anion.
3. It is equivalent to the magnitude of the ion with the higher charge.
4. It equals zero.
Consider the following redox reaction:

$CH_4 (g) + O_2(g) rarr CO_2(g) + 2H_2O (l)$

What is the change in the oxidation number of carbon in this reaction?
1. It increases from -4 to +4.
2. It decreases from +4 to 0.
3. It increases from +4 to -3.
4. It decreases from +4 to -2.
What would the oxidation number of a xenon atom be, and what would this oxidation number suggest?
1. Its oxidation number is 8, making it inert.
2. Its oxidation number is 0, making it nonreactive.
3. Its oxidation number is 7, making it reactive.
4. Its oxidation number is 0, making it reactive.
What is the oxidation number of V in $(V_2O_7) ^(4-)$?
1. $+5$
2. $+3$
3. $+2$
4. $+1$
Which species oxidizes another in the following redox reaction?
$3H_3AsO_3(aq) + BrO_3^(-) (aq) rarr Br^(-) (aq) + 3H_3AsO_4(aq)$?
1. $BrO_3^(-) (aq)$
2. $H_3AsO_3$
3. $Br^(_) (aq)$
4. $H_3AsO_4$
Consider the following redox reaction:

$(VO)^(2+) (aq) rarr V^(3+) (aq)$

What is the change in the oxidation number of vanadium in this reaction?
1. It decreases from +4 to +3.
2. It decreases from +4 to -4.
3. It increases from +4 to +2.
4. It decreases from +4 to -3.
$C_4H_4O_6^(2-) (aq) + ClO_3^(-) (aq) rarr CO_3^(2-) (aq) + Cl^(-) (aq)$?
1. $(ClO_3)^(-)$
2. $(C_6H_4O_6)^(2-)$
3. $(CO_3)^(2-)$
4. $Cl^(_)$