Oxidising Reagent and Reducing Reagent

Q. The following reaction occurs in acidic aqueous solution:
$H_{3}As{O}_4+Zn\to As{H}_3+Z{n}^{2+}$
$H_{3}As{O}_4$ is a ______ agent in which the oxidation number of $As$ is _______ .

1. $\text{Reducing},+5$
2. $\text{Oxidizing},+5$
3. $\text{Reducing},+3$
4. $\text{Oxidizing},+3$

Q. Oxidation state of S in FeS2?

Q. CN− or OCH3- is a better nucleophile and why

Q. Identify the oxidant and the reductant in the following reaction respectively:
$I_2+N{a}_2{S}_2{O}_3\to N{a}_2{S}_4{O}_6+NaI$

1. $I_2$ $\&$ $N{a}_2{S}_2{O}_3$
2. $N{a}_2{S}_2{O}_3$ $\&$ $I_2$
3. $I_2$ $\&$ $NaI$
4. $NaI$ $\&$ $I_2$

Q. Relation between oxidation state and equivalent weight?

Q. 79. Aerial oxidation of cummene

Q.

Which of the following cannot work as oxidising agent?

1. $O_2$

2. $KMn{O}_4$

3. $I_2$

4. None of these

Q.

A solution of sulphur dioxide in water reacts with $H_{2}S$ precipitating sulphur. Here sulphur dioxide acts as

1. an oxidising agent
2. a reducing agent
3. an acid
4. a catalyst

Q.

Strongest reducing agent is

1. $F^{-}$

2. $C{l}^{-}$

3. $B{r}^{-}$

4. $I^{-}$

Q. Balancing equation usin Oxidation number. Steps.

Q. oxidation state of p in P3

Q. Justify that the following reactions are redox reactions:

Q. $3KCl{O}_3+3H_{2}S{O}_4\to 3KHS{O}_4+HCl{O}_4+2Cl{O}_2+H_{2}O$
If molecular weight of $KCl{O}_3$ is $M$, then equivalent weight of $KCl{O}_3$ is:

1. $\frac{M}{4}$
2. $\frac{M}{2}$
3. $\frac{3M}{2}$
4. $\frac{3M}{4}$

Q. How to find maximum oxidation state?

Q. What is the oxidation no. of sulphur in K2S208?

Q. what is oxidation

Q. What is Oxidation number?What are fixed oxidation number of element?

Q. Oxidation number

Q. 8.What is oxidation state of ni in nico4

Q. oxidation number of Cr in Cr05 i

Q. Complete the following chemical reaction and classify into (a) hydrolysis, (b) redox and (c) hydration reaction.

Q.

Which of the following is the reducing agent in $ZnO\left(s\right)+C\left(s\right)⟶Zn\left(s\right)+CO\left(g\right)$

1. 

2. 

3. 

4. None of these

Q.

Which of the following is the most powerful oxidizing agent

1. $F_2$

2. $C{l}_2$

3. $B{r}_2$

4. $I_2$

Q. Identify the weakest oxidising agent among the following.

1. $L{i}^{+}$
2. $N{a}^{+}$
3. $C{s}^{2+}$
4. $I_2$

Q.

Identify the correct statement about $H_2{O}_2$

1. It acts as reducing agent only

2. It acts as both oxidising and reducing agent

3. It is neither an oxidiser nor reducer

4. It acts as oxidising agent only

Q.

Identify the correct statement about $H_2{O}_2$

1. It acts as reducing agent only

2. It acts as both oxidising and reducing agent

3. It is neither an oxidiser nor reducer

4. It acts as oxidising agent only

Q. Identify the oxidant and the reductant in the following reaction:
$2FeC{l}_2+H_2{O}_2+2HCl\to 2FeC{l}_3+2H_{2}O$

1. $FeC{l}_2,HCl$
2. $FeC{l}_2,H_2{O}_2$
3. $H_2{O}_2,FeC{l}_2$
4. $H_2{O}_2,HCl$

Q. Consider the following list of reagents:
$\text{Acidified}{K}_{2}C{r}_2{O}_7,\text{Alkanline}KMn{O}_4,CuS{O}_4,H_2{O}_2,C{l}_2,O_3,FeC{l}_3,HN{O}_3,andN{a}_2{S}_2{O}_3$
Which of the following reagents can oxidise aqueous iodide to iodine

1. $\text{Acidified}{K}_{2}C{r}_2{O}_7$
2. $N{a}_2{S}_2{O}_3$
3. $C{l}_2$
4. $O_3$

Q. In the reaction
$2Ag+2H_{2}S{O}_4\to A{g}_{2}S{O}_4+2H_{2}O+S{O}_2$
Sulphuric acid acts as

1. Oxidizing agent
2. Reducing agent
3. Oxidizing agent as well as reducing agent
4. None of the above

Q. Which of the following statements is not correct?

1. Non-spontaneous redox reactions can be used to produce electricity
2. n-factor is change in oxidation state per molecule
3. $Zn\left(s\right)\to Z{n}^{2+}\left(aq\right)+2e^{-}$ is an oxidation reaction
4. Spontaneous redox reactions can be used to produce electricity