Hydrogen Peroxide

Q. There are three samples of $H_2{O}_2$ labelled as $10\text{vol}$., 1$5\text{vol}$., and $20\text{vol}$. Half litre of each sample is mixed and then diluted with equal volumes of water. Calculate the volume strength of the resultant solution.

1. $2.68$
2. $1.339$
3. $7.5$
4. $5.0$

Q. The volume of oxygen liberated at STP from $15\text{mL}$ of $20$ volume $H_2{O}_2$ is:

1. $250\text{mL}$
2. $300\text{mL}$
3. $150\text{mL}$
4. $200\text{mL}$

Q.

10 mL of $H_2{O}_2$ solution (volume strength = x) requires 10 mL of N/0.56 $Mn{O}_4^{-}$ solution in acidic medium. Hence x is:

1. 0.56
2. 5.6
3. 0.1
4. 10

Q. Name the product formed when ethylene is treated with hydrogen peroxide.

1. Acetylene
2. Ethane
3. $C{O}_2$ & $H_{2}O$
4. Ethylene glycol

Q. The structure of $H_2{O}_2$ is:

1. spherical
2. non-planar
3. planar
4. linear

Q. $H_2{O}_2$ and water are miscible.

1. True
2. False

Q. In which of the following reaction(s) $H_2{O}_2$ acts as a reducing agent?

1. $H_2{O}_2+2H^{+}+2e^{-}⟶2H_{2}O$
2. $H_2{O}_2\underset{-2e^{-}}{⟶}{O}_2+2H^{+}$
3. $H_2{O}_2+2e^{-}⟶2O{H}^{-}$
4. $H_2{O}_2+2O{H}^{-}\underset{-2e^{-}}{⟶}{O}_2+2H_{2}O$

Q.

Decomposition of $H_2$$O_2$ is a

1. Oxidation

2. Reduction

3. Hydrolysis

4. Disproportionation

Q. The volume of oxygen liberated at STP from $15\text{mL}$ of $20$ volume $H_2{O}_2$ is:

1. $250\text{mL}$
2. $300\text{mL}$
3. $150\text{mL}$
4. $200\text{mL}$

Q. On shaking $H_2{O}_2$ with acidified potassium dichromate and ether, the ethereal layer becomes:

1. Green
2. Red
3. Blue
4. Black

Q. The volume of 10 volume $H_2{O}_2$ solution that decolorises 200 mL of 2 N $KMn{O}_4$ solution in an acidic medium is:

1. 112 mL
2. 200 mL
3. 336 mL
4. 236 mL

Q. Hydrogen peroxide, in its reaction with $KI{O}_4$ and $N{H}_{2}OH$ respectively, is acting as a:

1. reducing agent, oxidising agent
2. reducing agent, reducing agent
3. oxidising agent, oxidising agent
4. oxidising agent, reducing agent

Q.

Which pair has permanent dipole moment for both the members?

1. $N{O}_2$ and $C{O}_2$

2. $N{O}_2$ and $O_3$

3. $Si{F}_4$ and $C{O}_2$

4. $Si{F}_4$ and $N{O}_2$

Q.

Solid $H_2$$O_2$ has non planar and non linear structure based on

1. Dipole moment

2. X-ray study

3. Both 1 & 2

4. Chemical method

Q. What is the range of the oxidation state shown by phosphorus in its oxoacids?

1. $+2$ to $+4$
2. $+1$ to $+3$
3. $+1$ to $+5$
4. $+1$ to $+2$

Q. Which of the following is the true structure of $H_2{O}_2$?

1. 
2. 
3. 
4. 

Q. In which of the following reaction(s) $H_2{O}_2$ acts as a reducing agent?

1. $H_2{O}_2+2H^{+}+2e^{-}⟶2H_{2}O$
2. $H_2{O}_2\underset{-2e^{-}}{⟶}{O}_2+2H^{+}$
3. $H_2{O}_2+2e^{-}⟶2O{H}^{-}$
4. $H_2{O}_2+2O{H}^{-}\underset{-2e^{-}}{⟶}{O}_2+2H_{2}O$

Q. On shaking $H_2{O}_2$ with acidified potassium dichromate and ether, the ethereal layer becomes:

1. Green
2. Red
3. Blue
4. Black

Q. The species that does not contain peroxide ion is

1. $Pb{O}_2$
2. $H_2{O}_2$
3. $Sr{O}_2$
4. $Ba{O}_2$

Q. What is volume strength of $H_2{O}_2$ solution, whose 40 ml requires 20 ml of 0.2 M acidified $KMn{O}_4$ solution for complete reaction?

Q. The chemical nature of hydrogen peroxide is:

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Q. Which of the following is/are the use(s) of $H_2{O}_2$?

1. Bleaching agent
2. Rocket propellent
3. Sewage water treatment
4. mild disinfectant