HARD
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There are two given statements.

Statement - I: The equivalent weight of redox reactions can be calculated by calculating change in oxidation numbers. In disproportionation reactions, the equivalent weight can be calculated by separating both redox reactions and adding their equivalent weights.

Statement - II: The volume strength of H2O2 is a method to describe its concentrations. Volume strength is 11.2 times of its molarity. A solution of H2O2 is given. Its 100 mL is treated with 400 mL M6 KMnO4 in presence of H2SO4. Remaining solution is further capable to oxidise 4.5 g H2C2O4.

In statement 2, H2C2O4 is converted to CO2 gas. The volume of this CO2 gas at N.T.P. is same as

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Important Questions on Redox Reactions

MEDIUM
Which of the following species do not show disproportionation reaction?
EASY
Which of the following reactions is the metal displacement reaction? Choose the right option.
MEDIUM
Which among the following species doesn't show disproportionation reaction?
EASY
Which one of the following is an example of disproportionation reaction?
MEDIUM
An example of a disproportionation reaction is
MEDIUM
Which reaction does not represent auto redox or disproportionation?
MEDIUM

In which one of the following sets all species show disproportionation reaction?

MEDIUM
Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because
MEDIUM

Which of the following reactions are disproportionation reaction?

a 2Cu+Cu2++Cu0

b 3MnO42-+4H+2MnO4-+MnO2+2H2O

c 2KMnO4K2MnO4+MnO2+O2

d 2MnO4-+3Mn2++2H2O5MnO2+4H

Select the correct option from the following:

EASY
Which of the following species do not show disproportionation reaction?
HARD
The products obtained when chlorine gas reacts with cold and dilute aqueous NaOH are
MEDIUM
A redox reaction among the following is
MEDIUM
Which of the given reactions is not an example of disproportionation reaction?
EASY
From the given reactions identify the disproportionation reaction
i) Cl2(g)+2KI(aq)2KCl(aq)+I2(s)
ii) Cl2(g)+2OH-(aq)ClO-(aq)+Cl-(aq)+H2O(l)
iii) Mg(s)+2HCl(aq)MgCl2(aq)+H2(g)
iv) 2H2O2(aq)2H2O(l)+O2(g)
HARD

Match List-I with List-II, match the gas evolved during each reaction.

  List-I   List-II
A NH42Cr2O7Δ I H2
B KMnO4+HCl II N2
C Al+NaOH+H2O III O2
D NaNO3Δ IV Cl2

Choose the correct answer from the options given below

MEDIUM
What is meant by disproportionation reaction? Give examples
EASY

Upon dipping a copper rod, the aqueous solution of the salt that can turn blue is:

EASY
The species given below that does NOT show disproportionation reaction is:
MEDIUM
What will happen when a block of copper metal is dropped into a beaker containing a solution of 1M ZnSO4?
EASY
Chlorine on reaction with hot and concentrated sodium hydroxide gives.