Answers: MCQ Online Exercise 3_4A Atom Economy

1.	Method 2 [18% vs 7%]
2.	100%
3.

4.
a)	75cm³
b)	2.55g
c)	77%
	Percentage Yield = Actual Yield/ Max. Theoretical Yield X 100 = 1.97/2.55 X 100 = 77%
d)	16%
5.
a)
b)	0.56g
c)	55.2cm³/ 0.0552l
ii)	Yield = actual/theoretical =50.8/55.2 =92.03%
iii)	Underwater/ gas syringe
d)	72.6%