Question 1(a)
2 marks
An organic compound A is a liquid. It contains two functional groups. Tests are carried out to identify A.
Test 1 A small amount of phosphorus(V) chloride, PCl5, is added to 2 cm3 of A. Observation: misty fumes given off.
Test 2 Aqueous sodium hydrogencarbonate, NaHCO3(aq), is added to 2 cm3 of A. Observation: no visible reaction.
Identify, by name or formula, the functional group identified by these tests. Justify your answer.
Test 1 A small amount of phosphorus(V) chloride, PCl5, is added to 2 cm3 of A. Observation: misty fumes given off.
Test 2 Aqueous sodium hydrogencarbonate, NaHCO3(aq), is added to 2 cm3 of A. Observation: no visible reaction.
Identify, by name or formula, the functional group identified by these tests. Justify your answer.