Question

1. Explain the active and latent valency of 'S' in SO2?​

Answer 1

Answer:

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Answer 2

Active valency is +4 and latent valency is +2

Explanation:

• Active valency of Sulphur in $SO_2$ , i.e. Sulphur dioxide is +4 . This can be illustrated by the fact that Sulphur has 6 electrons in the outermost shell and needs 2 more to attain stability. Oxygen tends to form 2 bonds with Sulphur making its valency +4.
• Maximum valency that Sulphur can attain is +6 .
• Latent valency is defined as the difference between the highest valency and active valency of an element.
• Therefore , in this case latent valency of Sulphur will be ( 6-4= 2) +2.