When chloroform [CHCL3 ] is left exposed to air and light,it slowly gets oxidized to phosgene gas or carbonyl chloride [COCL3] Which is a poisinous gas. 2CHCL3+ O2 –> 2COCL2+2HCL it is used as anesthetic purpose in surgery. Hence anesthetic chlorform is kept in brown bottle to cut off light and the bottle is filled … Read moreWhy is chloroform stored in a dark brown bottle?
Class: 12 || Subject: Economics Unit-2 Elasticity of Demand and Its Measurement Long Answer Questions What is price elasticity of demand? Explain its types. [2+8] Define price elasticity of demand. How is it measured with total outlay method? [2+8=10] What is price elasticity of demand? Explain the different types of price elasticity of demand. [3+7=10] … Read moreHSEB || Important questions for Economics Class 12 (XII)