JEE Main levelSingle correct optionDifficulty 2 of 3ev189
Assertion (A): Supercritical carbon dioxide is used as a green solvent, for example in decaffeination of coffee.
Reason (R): Supercritical carbon dioxide is a strongly polar solvent that readily dissolves ionic salts.
ABoth A and R are true and R is the correct explanation of A
BBoth A and R are true but R is not the correct explanation of A
CA is true but R is false
DA is false but R is true
Answer: C
A is true: scCO2 is non-toxic, non-flammable and easily removed by releasing pressure. R is false: CO2 is non-polar overall and dissolves non-polar organic molecules such as caffeine, but not ionic salts.