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प्रश्न
What do you understand by redox reactions?
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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 reaction.
संबंधित प्रश्न
How do atoms attain noble gas configuration?
Define a chemical bond.
Give electron dot diagram of the following:
methane
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
Sodium chloride is ______ compound while hydrogen chloride is ______ compound.
The following table shows the electronic configuration of the elements W, X, Y, Z:
|
Element |
W |
X |
Y |
Z |
|
Electronic |
2, 8, 1 |
2, 8, 7 |
2, 5 |
1 |
Answer the following question based on the table above:
What is the formula of the compound formed between W and X.
How many electrons are required or released by each atom in calcium oxide to attain the nearest noble gas configuration?
Name the following:
Metal with valency 2
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of reducing agent.
Give the orbital diagram of the following:
Magnesium chloride
State the type of bonding in the following molecules.
Water,
Draw the geometric atomic structure of the following atom showing the number of electrons, protons and neutrons in them:
\[\ce{^39_19K}\]
Number of valence electrons in carbon is ______.
The element that would form anion by gaining electrons in a chemical reaction is ______.
The element that would form cation due to the loss of electrons during the chemical reaction is ______.
______ is the only noble gas that does not have eight electrons in its valence shell.
Complete the following table:
| a. | Dativebond | ______ |
| b. | CaH2 → Ca+H2 | ______ |
| c. | ______ | Reduction |
| d. | ______ | Redox reaction |
| Name of compound | Type of compound | |
| a. | Sodium chloride | ______ |
| b. | ______ | co-ordinate covalent compound |
| c. | Methane | ______ |
| d. | Fluorine molecule | ______ |
How many electrons are required or released by each atom in carbon tetrachloride to attain the nearest noble gas configuration?
