Chemistry
Grade-10
Easy
Question
Which process involves the transfer of electrons?
- Double replacement
- Neutralization
- Oxidation - reduction
- Sublimation
Hint:
Oxidation is loss of electron and reduction is gain of electron so transfer of electrons occurs in a redox reaction
The correct answer is: Oxidation - reduction
Oxidation is the loss of electrons during a reaction by a molecule, atom or ion. Oxidation occurs when the oxidation state of a molecule, atom or ion is increased. The opposite process is called reduction, which occurs when there is a gain of electrons or the oxidation state of an atom, molecule, or ion decreases.
Oxidation - reduction process involves the transfer of electrons.
Related Questions to study
Chemistry
Which of the following is NOT an example of an oxidation-reduction reaction?
Which of the following is NOT an example of an oxidation-reduction reaction?
ChemistryGrade-10
Chemistry
In the reaction
2Ca(s) + O2(g) → 2CaO(s), reductant is _____
In the reaction
2Ca(s) + O2(g) → 2CaO(s), reductant is _____
ChemistryGrade-10
Chemistry
A redox reaction is initiated by
A redox reaction is initiated by
ChemistryGrade-10
Chemistry
Oxidation involves
Oxidation involves
ChemistryGrade-10
Chemistry
What could be the change in oxidation state of F in the reverse reaction of
F2 → 2 F- + 2 e-
What could be the change in oxidation state of F in the reverse reaction of
F2 → 2 F- + 2 e-
ChemistryGrade-10
Chemistry
Substances that lose electrons easily and are oxidized in a chemical reaction will help in ______.
Substances that lose electrons easily and are oxidized in a chemical reaction will help in ______.
ChemistryGrade-10
Chemistry
If an atom loses electrons its oxidation state changes from
If an atom loses electrons its oxidation state changes from
ChemistryGrade-10
Chemistry
Oxidation number of Fe in Fe2O3:
Oxidation number of Fe in Fe2O3:
ChemistryGrade-10
Chemistry
When an atom loses an electronegative element, we say that the atom has been:
When an atom loses an electronegative element, we say that the atom has been:
ChemistryGrade-10
Chemistry
Which of the following is NOT a redox reaction?
Which of the following is NOT a redox reaction?
ChemistryGrade-10
Chemistry
If an atom increases its oxidation state during a chemical reaction, the atom was:
If an atom increases its oxidation state during a chemical reaction, the atom was:
ChemistryGrade-10
Chemistry
Which of the following defines oxidation?
Which of the following defines oxidation?
ChemistryGrade-10
Chemistry
Cl2 + 2e- → 2Cl - is an example of:
Cl2 + 2e- → 2Cl - is an example of:
ChemistryGrade-10
Chemistry
In a reaction, copper is reduced; its number of electrons has:
In a reaction, copper is reduced; its number of electrons has:
ChemistryGrade-10
Chemistry
In the reaction
2Ca(s) + O2(g) → 2CaO(s), calcium is _______
In the reaction
2Ca(s) + O2(g) → 2CaO(s), calcium is _______
ChemistryGrade-10