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Chloroform was synthesised in the year 1847. It was mainly used in the medicine industry. When…

Chemistry20253 marksCase based
Chloroform was synthesised in the year 1847. It was mainly used in the medicine industry. When exposed to sunlight it forms a poisonous gas called phosgene. To prevent this, a small quantity of a compound which has a molecular formula $\text{C}_2\text{H}_6\text{O}$ is added.
(a)[1.0]
What is the chemical formula of phosgene?
(b)[1.0]
Which chemical is added to prevent the formation of phosgene.
(c)[1.0]
Where is chloroform used in the field of medicine?

Answer

Answer (a)

Official answer key
$\mathrm{COCl_2}$

Answer (b)

Official answer key
Ethanol

Answer (c)

Official answer key
Anaesthesia
Haloalkanes and Haloarenes

From ISC 2025 Practice Chemistry, question 85.