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प्रश्न
What do you understand by redox reactions? Explain oxidation and reduction in terms of loss or gain of electrons.
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उत्तर
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
संबंधित प्रश्न
Give electron dot diagram of the following:
nitrogen
State differences between the properties of ionic compounds and covalent compounds.
Element X is a metal with a valency 2; Y is a non-metal with a valency 3.
(a) Write an equation to show how Y forms as ion
(b) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.
What do you understand by redox reactions?
State the type of bonding in the following molecules.
Calcium oxide
Element M forms a chloride with the formula MCl2 which is solid with a high melting point. What type of bond is in MCl2. Write the formula of the compound when M combines with sulphur, oxygen, and nitrogen.
Elements with stable electronic configurations have eight electrons in their valence shell. They are ______.
Choose the odd one out and write the reason:
How many atoms of each kind are present in the following molecule:
carbon tetrachloride
Elements A, B and C have atomic number 17, 19 and 10 respectively.
Write down the formula of the compound formed by two of the above elements.
