Tincture of Iodine is:
Correct answer: C. In ethanol and water mixture with KI and I2
- A. In alcohol with CHI3
- B. In alcohol with I2
- C. In ethanol and water mixture with KI and I2
- D. In KI and CH3I
Explanation
'Tincture of iodine' is a weak solution of iodine which is used as an antiseptic. It is prepared by mixing 2-7% of elemental iodine along with potassium iodide in a mixture of ethanol and water.
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Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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