Iodine dissolves in water in the presence of KI due to formation of which of the following species?
Iodine dissolves in water in the presence of KI due to formation of which of the following species?
آئوڈین مندرجہ ذیل میں سے کون سی پرجاتی کی تشکیل کی وجہ سے کے ایل کی موجودگی میں پانی میں گھل جاتی ہے؟
Explanation
When iodine dissolves in water in the presence of KI, it forms the I₃⁻ ion.
Iodine (I₂) is not very soluble in water on its own due to its non-polar nature.
However, when added to an aqueous solution of potassium iodide (KI),
The iodide ions (I⁻) react with the iodine molecules to form a triiodide ion (I₃⁻), which is more soluble in water.
This complex ion is the reason why iodine's solubility significantly increases in the presence of KI.