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प्रश्न
Identify the following reaction as either oxidation or reduction:
Fe3+ + e- → Fe2+
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उत्तर
Reduction
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संबंधित प्रश्न
Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one forms an anion?
Give electron dot diagram of the following:
nitrogen
What type of bond is formed between two atoms, when the electronegative difference between them is low ?
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 questions based on the table above:
What is the formula of the compound formed between X and Z.
Explain
Duplet rule for the formation of hydrogen
Five atoms are labelled V to Z
| Atoms | Mass Number | Atomic Number |
| V | 40 | 20 |
| W | 19 | 9 |
| X | 7 | 3 |
| Y | 16 | 8 |
| Z | 14 | 7 |
- Which one of these atoms
(1) contains 7 protons;
(2) has an electronic configuration 2, 7? - Write down the formula of the compound formed by atoms X and Y.
Number of valence electrons in carbon is ______.
Sodium having atomic number 11, is ready to ______ electron/ electrons to attain the nearest noble gas electronic configuration.
Draw the electron distribution diagram for the formation of Carbon di oxide (CO2 ) molecule.
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is chemically inert.
