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प्रश्न
Identify the following reaction as either oxidation or reduction:
O + 2e- → O2-
उत्तर
Reduction
APPEARS IN
संबंधित प्रश्न
Match the atomic numbers 4, 14, 8, 15 and 19 with each of the following:
- A solid non-metal of valency 3.
- A gas of valency 2.
- A metal of valency 1.
- A non-metal of valency 4.
Write the formula of its (X)
sulphate
nitrate
phosphate
carbonate
hydroxide.
What do you understand by redox reactions?
State the type of bonding in the following molecules.
Water,
State the type of bonding in the following molecules.
Calcium oxide
Copy and complete the following table relating to the atomic structure of some elements:
| Element | Atomic Number | Mass Number | Number of protons | Number of Neutrons | Number of Electrons |
| Beryllium | 4 | 9 | |||
| Fluorine | 9 | 10 | |||
| Sodium | 12 | 11 | |||
| Aluminium | 27 | 13 | |||
| Phosphorus | 31 | 15 |
Spot the error/correct the wrong statement:
In the formation of compounds, the inner shell electrons of an atom involved in bonding.
What is a chemical bond?
Complete the following table:
| a. | Dativebond | ______ |
| b. | CaH2 → Ca+H2 | ______ |
| c. | ______ | Reduction |
| d. | ______ | Redox reaction |
How many electrons are required or released by each atom in chlorine to attain the nearest noble gas configuration?
