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प्रश्न
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Sodium chloride
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उत्तर
Step 1: Write the symbols of the radicals.
Na Cl
Step 2: Write the valency below the respective radical.
Na Cl
1 1
Step 3: Cross-multiply symbols of radicals with their respective valency.
Step 4: Write down the chemical formula of the compound.
संबंधित प्रश्न
What are homogenous reactions ?
Fill in the blank
A new substance is formed in a _______ change.
Multiple choice:
A reaction of a type: AB + CD → AD + CD, involves
State the following reaction represent oxidation or reduction.
\[\ce{Fe++->Fe+++}\]
State whether the following reaction is oxidation or reduction.
\[\ce{Na->Na+}\]
The chemical change is ______.
______ is not a chemical change.
Magnesium + oxygen → magnesium oxide.
2Mg + O2 → 2Mg O
Match the following:
| Column I | Column II | ||
| 1. | Burning of coal | a. | Rusting |
| 2. | Painting of a surface | b. | Evaporation |
| 3. | Dipping iron in the water | c. | Chemical change |
| 4. | Salt from seawater | d. | Prevention of rusting |
Write the equation for the process of formation of rust.
