Classical Idea of Redox Reactions

IMPORTANT

Classical Idea of Redox Reactions: Overview

This topic covers concepts such as Redox Reactions, Applications of Redox Reactions, Classical Oxidation, Oxidation as Removal of Hydrogen, Oxidation as an Addition of an Electronegative Part, Oxidation as an Addition of Oxygen, etc.

Important Questions on Classical Idea of Redox Reactions

EASY
IMPORTANT

With the depletion of the ozone layer, UV radiations lead to ageing of the skin, cataracts, sunburn, skin cancer, killing of many phytoplanktons, damage to _____ productivity etc.

EASY
IMPORTANT

With the depletion of ozone layer, more UV radiation filters into stratosphere.

EASY
IMPORTANT

What are the effects of depletion of the ozone layer?

HARD
IMPORTANT

Which of the following reactions involved removal of an electronegative element

HARD
IMPORTANT

2FeCl3+SO2+2H2O2FeCl2+H2SO4+2HCl

The above reaction involves the removal of an _____ chlorine atom.

MEDIUM
IMPORTANT

Consider the reaction.

MnO2(s)+4HCl MnCl2(aq) + Cl2(g) + 2H2O

Identify the oxidation and reduction reaction in the above equation.

MEDIUM
IMPORTANT

Give the difference between oxidation and reduction with examples.

EASY
IMPORTANT

Identify the substance that is oxidised and substance that is reduced in the following reaction.

CuO(s) + H2(g) Cu(s) + H2O(I)

EASY
IMPORTANT

Identify the substance that is oxidised and substance that is reduced in the following reaction.
4Na(s) + O2(g)  2Na2O(s)

HARD
IMPORTANT

Write differences-

Oxidation-Reduction.

HARD
IMPORTANT

What do you mean by oxidation-reduction? Explain with examples.

MEDIUM
IMPORTANT

Identify oxidation-reduction in the following reaction.

Mg+Cl2MgCl2

 

MEDIUM
IMPORTANT

Identify oxidation-reduction in following reaction.

 C+O2CO2

 

MEDIUM
IMPORTANT

Conversion of   into   is called

This question given in the book seems to have an error and the modified question is given below.

Conversion of FeCl3 into FeCl2 is called- 

EASY
IMPORTANT

Which of the following reaction does not involve oxidation and reduction?

MEDIUM
IMPORTANT

In partial oxidation; alcohols are converted into _____.

EASY
IMPORTANT

Which of the following can act as oxidizing as well as reducing agent?

EASY
IMPORTANT

Name the gas in air which tarnishes silver articles slowly. (Hydrogen sulphide/Carbon dioxide)

MEDIUM
IMPORTANT

Explain the following term:

Ozone hole

EASY
IMPORTANT

Which of the following statement(s) is/are not true about the following decomposition reaction?

2KClO32KCl+3O2

(i) Potassium is undergoing oxidation

(ii) Chlorine is undergoing oxidation

(iii) Oxygen is reduced

(iv) None of the species are undergoing oxidation or reduction