Advertisements
Advertisements
Question
What do you understand by redox reactions? Explain oxidation and reduction in terms of loss or gain of electrons.
Advertisements
Solution
Transfer of electron(s) is involved in the formation of an electrovalent bond. The electropositive atom undergoes oxidation, while the electronegative atom undergoes reduction. This is known as a redox process.
Oxidation: In the electronic concept, oxidation is a process in which an atom or ion loses electron(s).
Zn → Zn2+ + 2e-
Reduction: In the electronic concept, the reduction is a process in which an atom or ion accepts electron(s).
Cu2+ + 2e-→ Cu
RELATED QUESTIONS
Mention the basic tendency of an atom which makes it to combine with other atoms.
Give electron dot diagram of the following:
methane
What type of bond is formed between two atoms, when the electronegative difference between them is zero?
Match the column A with Column B.
|
Column A |
Column B |
|
(i) Sodium chloride (ii) Ammonium ion (iii) Carbon tetrachloride |
Covalent bond Ionic bond Covalent and coordinate bond |
Among the following compounds identify the compound that has all three bonds (ionic, covalent and coordinate bond).
A Compound 'X' consists of only molecules. Hence 'X' will have
Draw orbit structure diagram of calcium oxide (CaO).
Draw the geometric atomic structure of the following atom showing the number of electrons, protons and neutrons in them:
\[\ce{^31_15P}\]
Complete the following table:
| a. | Dativebond | ______ |
| b. | CaH2 → Ca+H2 | ______ |
| c. | ______ | Reduction |
| d. | ______ | Redox reaction |
How many atoms of each kind are present in the following molecule:
carbon tetrachloride
