Q. Assign oxidation number to the underlined element in $Na{H}_2\underset{–}{P}{O}_4$.

Q. Assign oxidation number to the underlined element in $K_2\underset{–}{Mn}{O}_4$

Q. Justify that the following reactions are redox reactions:

Q. Justify that the following reactions are redox reactions:

Q. What are the oxidation number of the underlined elements in each of the following and how do you rationalise your results?

Q. Assign oxidation number to the underlined element in $Na\underset{–}{B}{H}_4$

Q. Assign oxidation number to the underlined element in $NaH\underset{–}{S}{O}_4$.

Q. Justify that the following reactions are redox reactions:

Q. Calculate the oxidation no. of sulphur in $H_2{\underset{–}{S}}_4{O}_6$.

Q. Calculate the oxidation no. of underlined elements in $\underset{–}{C}{H}_3\underset{–}{C}{H}_{2}OH$

Q. $Ca{\underset{–}{O}}_2$

Q. What are the oxidation number of the underlined elements in $\underset{–}{C}{H}_3\underset{–}{C}OOH$.

Q. $2K\left(s\right)+F_2\left(g\right)\to 2K^{+}{F}^{-}\left(s\right)$ is a type of ______ reaction.

1. disproportionation
2. corrosion
3. combustion
4. redox

Q. Justify that the following reactions are redox reactions:

Q. ${\underset{–}{Fe}}_3{O}_4$

Q. Assign oxidation number to the underlined element in $H_2{\underset{–}{S}}_2{O}_7$

Q. Assign oxidation number to the underlined element in $KAl(\underset{–}{S}{O}_4{)}_2.12H_{2}O$

Q. Assign oxidation number to the underlined element in $H_4{\underset{–}{P}}_2{O}_7$

Q. Justify that the following reactions are redox reactions:

Q. Fluorine reacts with ice and results as follows:
$H_{2}O\left(s\right)+F_2\left(g\right)\to HF\left(g\right)+HOF\left(s\right)$
Justify that this reaction is a redox reaction.