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प्रश्न
Write the chemical formula of the following compound in a step-by-step manner –
Potassium nitrate
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उत्तर
Write the formula of
| Potassium nitrate | Symbol | Valency |
| Potassium | \[\ce{K}\] | \[\ce1^+\] |
| Nitrate | \[\ce{NO3}\] | \[\ce1^-\] |
Step I – Write each symbol with its valency.
Positive ion is written first
\[\ce{K}^{1+}\] \[\ce{[NO3]}^{1-}\]
Step II – Interchange the valencies and ignoring the +ve and −ve signs
The Formula is \[\ce{KNO3}\]
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