NEET Chemistry MCQ: NCERT H2O2 Decomposition | NEET.Guide Questions

Hydrogen peroxide decomposes on its own into which substances?

A

Water and Hydrogen

B

Oxygen and Hydrogen

C

Water and Oxygen

D

Only Water

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :0.5 mins

🔄Ncert Concepts :Decomposition of H2O2

Related Questions

The decomposition of ${{\rm{H}}_2}{{\rm{O}}_2}$ can be slowed down by the addition of small amount of phosphoric acid which acts as:

A

Stopper

B

Detainer

C

Inhibitor

D

promoter

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :chemical kinetics, reaction rates, catalysts, inhibitors

A mixture of hydrazine and 40 to 60 per cent of ${{\rm{H}}_2}{{\rm{O}}_2}$ solution is:

A

Antiseptic

B

Rocket fuel

C

Germicide

D

Insecticide

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Chemical Properties, Rocket Propellants

On bubbling ${\rm{C}}{{\rm{O}}_2}$ through a solution of barium peroxide in water:

A

${{\rm{O}}_2}$ is formed

B

${{\rm{H}}_2}{\rm{C}}{{\rm{O}}_3}$ is formed

C

${{\rm{H}}_2}{{\rm{O}}_2}$ is formed

D

${{\rm{H}}_2}$ is formed

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎓 Ncert Level:Understanding

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :chemical reactions, barium peroxide, carbon dioxide, hydrogen peroxide

${H_2}{O_2}$ acts both as an oxidising and as reducing agent depending upon the nature of the reacting species. In which of the following cases does ${H_2}{O_2}$ act as a reducing agent in acid medium

A

$MnO_4^-$

B

$Fe^{2+}$

C

$PbS$

D

$Na_2SO_3$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Oxidizing agent, Reducing agent, Redox reaction, Oxidation number, Acidic medium

10 volumes of ${{\rm{H}}_2}{{\rm{O}}_2}$ has a strength of approximately:

A

$3\%$

B

$30\%$

C

$10\%$

D

$5\%$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Hydrogen peroxide concentration, Volume strength

Acidified solution of chromic acid on treatment with ${{\rm{H}}_2}{{\rm{O}}_2}$ yields:

A

Yellow chromium(III) hydroxide

B

Orange dichromate

C

Blue chromium peroxide

D

Green chromium(II) sulphate

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Redox Reactions, Chromium Chemistry, Peroxo Compounds

The volume strength of a sample of hydrogen peroxide is 10V. What is the mass of $H_2O_2$ present in 250 mL of this sample? (Molar mass of $H_2O_2$ = 34 g/mol)

A

3.4 g

B

1.7 g

C

7.08 g

D

14.16 g

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :2 mins

🔄Ncert Concepts :Hydrogen Peroxide, Volume Strength, Molarity

Which one of the following reactions represents the oxidising property of ${{\rm{H}}_2}{{\rm{O}}_2}$ ?

A

$2{\rm{KMn}}{{\rm{O}}_4} + 3{{\rm{H}}_2}{\rm{S}}{{\rm{O}}_4} + 5{{\rm{H}}_2}{{\rm{O}}_2} o {{\rm{K}}_2}{\rm{S}}{{\rm{O}}_4} + 2{\rm{MnS}}{{\rm{O}}_4} + 8{{\rm{H}}_2}{\rm{O}} + 5{{\rm{O}}_2}$

B

$2{{\rm{K}}_3}\left[ {{\rm{Fe}}{{\left( {{\rm{CN}}} \right)}_6}} \right] + 2{\rm{KOH}} + {{\rm{H}}_2}{{\rm{O}}_2} o 2{{\rm{K}}_4}\left[ {{\rm{Fe}}{{\left( {{\rm{CN}}} \right)}_6}} \right] + 2{{\rm{H}}_2}{\rm{O}} + {{\rm{O}}_2}$

C

${\rm{P}}{{\rm{b}}_2} + {{\rm{H}}_2}{{\rm{O}}_2} o {\rm{PbO}} + {{\rm{H}}_2}{\rm{O}} + {{\rm{O}}_2}$

D

$2{\rm{KI}} + {{\rm{H}}_2}{\rm{S}}{{\rm{O}}_4} + {{\rm{H}}_2}{{\rm{O}}_2} o {{\rm{K}}_2}{\rm{S}}{{\rm{O}}_4} + {{\rm{I}}_2} + 2{{\rm{H}}_2}{\rm{O}}$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎓 Ncert Level:Analyzing

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Oxidation, Reduction, Oxidizing Agent, Reducing Agent, Redox Reactions, Oxidation Number

Which one is correct for perhydrol?

A

It is 30% ${{\rm{H}}_2}{{\rm{O}}_2}$ or 100 vol. ${{\rm{H}}_2}{{\rm{O}}_2}$

B

Its molarity is 8.8 M

C

It is used as antiseptic and germicide

D

All of the above

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎓 Ncert Level:Understanding

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :perhydrol, hydrogen peroxide concentration, molarity, antiseptics

${H_2}{O_2}$ acts as antiseptic due to its

A

Reducing property

B

Oxidising property

C

Bleaching property

D

Acidic property

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Redox reactions, oxidizing agents, antiseptic properties

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