Question
C (Valency 4) & O (Valency 2)
✓
Answer
Step 1: Write the symbols of the constituent elements.
Step 2: Write the valency below the respective elements.
Step 3: Cross multiply the valencies.
The formula: $C _2 O _4$
The number of constituent atoms in the final molecular formula should be the smallest possible whole number. Divide the formula $C _2 O _4$ by suitable number.
Final molecular formula obtained by dividing by ' 2 '.
Molecular formula: $CO _2$
Step 2: Write the valency below the respective elements.
Step 3: Cross multiply the valencies.
The formula: $C _2 O _4$
The number of constituent atoms in the final molecular formula should be the smallest possible whole number. Divide the formula $C _2 O _4$ by suitable number.
Final molecular formula obtained by dividing by ' 2 '.
Molecular formula: $CO _2$
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