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MDCAT ENGLISH MCQs
Biology etea medical mcqs
etea Chemistry
Physics
BS Nursing

Author: ETEA MCQS.COM

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In a chemical reaction, theoretical yield is based on:

Limiting reactant
Excess reactant
Catalyst used
Temperature

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

Why is actual yield typically less than theoretical yield?

Reactants are pure
Reaction is perfect
Side reactions occur
None

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

Theoretical yield depends on:

Balanced equation
Stoichiometry
Limiting reagent
All of the above

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

A reaction gives 4.2g of product from a possible 6g. What is % yield?

60%
65%
70%
75%

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

If theoretical yield is 150g and actual yield is 135g, what is % yield?

85%
90%
95%
100%

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

Which value is calculated by comparing actual to theoretical yield?

Limiting reactant
Excess mass
Percentage yield
Reactant ratio

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

If the theoretical yield is 50g and the actual yield is 45g, what is the percentage yield?

80%
90%
95%
100%

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

Theoretical Yield = 50 g, Actual Yield = 40 g. What is the % Yield?

80%
125%
60%
75%

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

% Yield = 90%, Theoretical Yield = 150 g. Actual Yield?

135 g
165 g
90 g
140 g

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

Actual Yield = 84 g, % Yield = 70%. Theoretical Yield?

120 g
58.8 g
110 g
100 g

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

Theoretical Yield = 80 mol, Actual Yield = 72 mol. % Yield?

90%
111%
85%
75%

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

% Yield = 65%, Actual Yield = 32.5 g. Theoretical Yield?

50 g
21.1 g
45 g
55 g

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

Theoretical Yield = 45 kg, Actual Yield = 36 kg. % Yield?

80%
125%
60%
75%

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

% Yield = 95%, Theoretical Yield = 200 mL. Actual Yield?

190 mL
210 mL
180 mL
195 mL

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

Actual Yield = 63 L, % Yield = 90%. Theoretical Yield?

70 L
56.7 L
75 L
60 L

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

Theoretical Yield = 500 mg, Actual Yield = 425 mg. % Yield?

85%
117.60%
80%
90%

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

% Yield = 88%, Actual Yield = 44 g. Theoretical Yield?

50 g
38.7 g
48 g
55 g

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

Theoretical Yield = 120 g, Actual Yield = 108 g. % Yield?

90%
111%
85%
75%

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

% Yield = 75%, Theoretical Yield = 80 g. Actual Yield?

60 g
100 g
75 g
65 g

ETEA MCQS.COM
FUNDAMENTAL CONCEPTS OF CHEMISTRY

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