From the following statements regarding H2O2, choose the incorrect statement:

(1) It can act only as an oxidising agent

(2) It decomposes on exposure to light

(3) It has to be stored in plastic or wax lined glass bottles in dark

(4) It has to be kept away from dust

Subtopic:  H2O2 (Hydrogen Peroxide) |
 82%
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Hydrogen peroxide is now generally prepared on industrial scale by the:

(1) Action of H2SO4 on barium peroxide

(2) Action of H2SO4 on sodium paraoxide

(3) Electrolysis of 50% H2SO4

(4) Burning hydrogen in excess of oxygen

Subtopic:  H2O2 (Hydrogen Peroxide) |
From NCERT
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H2O2 functions as a 

1. Bleaching agent

2. Oxidising agent

3. Oxidant for a rocket fuel

4. All of the above

 

 

Subtopic:  H2O2 (Hydrogen Peroxide) |
 89%
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Fe+H2O1023-1073K Product
     (Steam)
Product formed is 
1. FeO+H2

2. Fe2O3+H2O

3. Fe2O3+H2

4. Fe3O4+H2

Subtopic:  Preparation & Properties |
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A compound that can remove both temporary and permanent hardness of water is -

1. NaHCO3

2. Boiling

3. Ca(OH)2

4. Na6P6O18

Subtopic:  Hard & Soft Water |
 52%
From NCERT
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An isotope that is used as a tracer in a chemical reaction is-

1. H11

2. H12

3. H13

4. Ortho hydrogen

Subtopic:  Hydrogen- Types & Isotopes |
 60%
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Calcium carbide with heavy water generates-

1.  CaOH2

2.  C2D2

3.  D2O2

4.  CaD2

Subtopic:  H2O2 (Hydrogen Peroxide) |
 66%
From NCERT
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Calgon ( a water softener) is : 

1. Na2Na4PO36

2. Na4Na2PO36

3. Na2Na4PO46

4. Na4Na2PO46

 

Subtopic:  Hard & Soft Water |
 65%
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Hydrogen peroxide in its reaction with KIO4 and NH2OH 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

Subtopic:  H2O2 (Hydrogen Peroxide) |
 60%
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Reaction among the following where H2O2 acts as a reducing agent is-

a. H2O2+2H++2e-2H2O

b. H2O2-2e-O2+2H+

c. H2O2+2e-2OH-

d. H2O2+2OH--2e-O2+2H2O

1. a, b

2. c, d

3. a, c

4. b, d

Subtopic:  H2O2 (Hydrogen Peroxide) |
 61%
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