Chemistry
Grade-8
Easy
Question
Identify the redox reaction from the following chemical reactions.
(i) 
(ii) 
(iii) 
(iv) 
Options:
- Only (i) and (ii)
- Only (ii) and (iii)
- Only (i)
- Only (iii)
Hint:
Only (ii) and (iii)
The correct answer is: Only (ii) and (iii)
2Na +Cl2 ------> 2NaCl
Here, sodium is oxidised and chlorine is reduced hence, Redox reaction.
CuSO4 + Zn -------> ZnSO4 + Cu
Here, zinc is the reducing agent while copper is the oxidizing agent hence, Redox reaction.
Related Questions to study
Chemistry
In the chemical reaction below, find out the compound which acts as a reducing agent.
In the chemical reaction below, find out the compound which acts as a reducing agent.
ChemistryGrade-8
Chemistry
Out of the following, which fuel contains the largest percentage of hydrogen?
Out of the following, which fuel contains the largest percentage of hydrogen?
ChemistryGrade-8
Chemistry
Identify the oxidizing agent from the following:
Identify the oxidizing agent from the following:
ChemistryGrade-8
Chemistry
The substance which supplies hydrogen during the oxidation-reduction reaction is called
The substance which supplies hydrogen during the oxidation-reduction reaction is called
ChemistryGrade-8
Chemistry
Reduction is a process that involves
Reduction is a process that involves
ChemistryGrade-8
Chemistry
The process in which hydrogen is removed from the substance is known as _____.
The process in which hydrogen is removed from the substance is known as _____.
ChemistryGrade-8
Chemistry
Which of the following application does not represent the uses of hydrogen?
Which of the following application does not represent the uses of hydrogen?
ChemistryGrade-8
Chemistry
The mixture of hydrogen and oxygen, when burnt together, gives a flame known as ________.
The mixture of hydrogen and oxygen, when burnt together, gives a flame known as ________.
ChemistryGrade-8
Chemistry
The substance that removes the oxygen or supplies hydrogen during the redox reaction is known as
The substance that removes the oxygen or supplies hydrogen during the redox reaction is known as
ChemistryGrade-8
Chemistry
The temperature at which the oxy-hydrogen flame can be formed is
The temperature at which the oxy-hydrogen flame can be formed is
ChemistryGrade-8
Chemistry
In the following chemical reaction, chlorine may be regarded as
?
In the following chemical reaction, chlorine may be regarded as
?
ChemistryGrade-8
Chemistry
Which of the following is not correctly matched?
Which of the following is not correctly matched?
ChemistryGrade-8
Chemistry
The process by which ammonia is industrially prepared by using hydrogen is known as
The process by which ammonia is industrially prepared by using hydrogen is known as
ChemistryGrade-8
Chemistry
Producer gas is the mixture of
Producer gas is the mixture of
ChemistryGrade-8
Chemistry
Indicate which of the following statements are true and which are false.
(a) Hydrogen acts as a good oxidising agent in many chemical reactions.
(b) The oxides of active metal do not get reduced by hydrogen.
(c) The reaction between hydrogen and nitrogen is reversible in nature.
Indicate which of the following statements are true and which are false.
(a) Hydrogen acts as a good oxidising agent in many chemical reactions.
(b) The oxides of active metal do not get reduced by hydrogen.
(c) The reaction between hydrogen and nitrogen is reversible in nature.
ChemistryGrade-8
