Explore topic-wise MCQs in Chemical Engineering.

This section includes 42 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

How many moles of O2 are required for the complete combustion of C3H8?

A. 160.48
B. 170.48
C. 180.48
D. 190.48
Answer» E.
2.

What is the number of moles of C3H8 in the product?

A. 25.8
B. 35.8
C. 45.8
D. 55.8
Answer» C. 45.8
3.

What is the number of moles of H2O in the product?

A. 4.8
B. 8.8
C. 16.8
D. 32.8
Answer» D. 32.8
4.

What is the ratio of Hydrogen to the Pentane in the feed?a) 1.167b) 2.167c) 3.167d) 4.167 7-10. C3H8 is burned in air with a composition of 40 moles and 100 moles.7. What is the number of moles of CO2 in the product?

A. 1.167b) 2.167c) 3.167d) 4.167 7-10. C3H8 is burned in air with a composition of 40 moles and 100 moles.7. What is the number of moles of CO2 in the product?a) 12.6
B. 2.167c) 3.167d) 4.167 7-10. C3H8 is burned in air with a composition of 40 moles and 100 moles.7. What is the number of moles of CO2 in the product?a) 12.6b) 10.6
C. 3.167d) 4.167 7-10. C3H8 is burned in air with a composition of 40 moles and 100 moles.7. What is the number of moles of CO2 in the product?a) 12.6b) 10.6c) 8.6
D. 4.167 7-10. C3H8 is burned in air with a composition of 40 moles and 100 moles.7. What is the number of moles of CO2 in the product?a) 12.6b) 10.6c) 8.6d) 4.6View Answer
Answer» C. 3.167d) 4.167 7-10. C3H8 is burned in air with a composition of 40 moles and 100 moles.7. What is the number of moles of CO2 in the product?a) 12.6b) 10.6c) 8.6
5.

What is the mole fraction of Pentane in the feed?

A. 0.315
B. 0.215
C. 0.115
D. None of the mentioned
Answer» B. 0.215
6.

Molar ratio of H2 consumed to Hexane reacted in the process?

A. 1.2
B. 1.4
C. 1.6
D. 1.8
Answer» B. 1.4
7.

What is the mole percent of H2 in the feed?

A. 59.2
B. 49.2
C. 39.2
D. 29.9
Answer» C. 39.2
8.

A reactor is supplied with 2 streams both at the rate 5 mole, one has 40% Cl2 and 60% N2, and another has pure C2H6, if the product has C2H5Cl, HCl and N2 at the rate 20 mole, what is the percentage of HCl in products?

A. 10%
B. 15%
C. 25%
D. 30%View answer
Answer» C. 25%
9.

A reactor is supplied with 2 streams both at same rates, one has pure Cl2, and another has pure C2H6, if the product has 20% C2H5Cl and 50% HCl and 30% C2H6, what is the ratio of rate of feed and rate of product?

A. 0.2
B. 0.5
C. 2
D. 5View answer
Answer» C. 2
10.

A reactor is supplied with 2 streams both at same rates, one has pure Cl2, and another has pure C2H6, if the product has 20% C2H5Cl and 80% HCl, what is the ratio of rate of feed and rate of product?

A. 0.2
B. 0.5
C. 2
D. 5View answer
Answer» B. 0.5
11.

Ethane is supplied with chlorine in a reactor, how many independent element balances can you write?

A. 1
B. 2
C. 3
D. 4View answer
Answer» D. 4View answer
12.

Ethane is supplied at the rate F with oxygen at the rate W and leaves the following products CO2, H2O, O2, C2H6 and H2 at the rate P. How many independent element balances are possible?

A. 1
B. 2
C. 3
D. 4View answer
Answer» D. 4View answer
13.

A reactor is supplied with 10 moles glucose and excess oxygen to produce CO2 and H2O, if the rate of products is 25 moles, what is the percentage of CO2 in the products?

A. 0.1
B. 0.2
C. 0.3
D. 0.4View answer
Answer» E.
14.

A reactor is supplied with 10 moles glucose and excess oxygen to produce 40% CO2, 60% H2O, what is the rate of products?

A. 25 mole
B. 50 mole
C. 75 mole
D. 100 moleView answer
Answer» B. 50 mole
15.

A reactor is supplied with glucose and oxygen to produce 40% CO2, 60% H2O, what is the ratio of glucose reacted and products?

A. 0.2
B. 0.4
C. 0.6
D. 0.8View answer
Answer» C. 0.6
16.

A reactor supplied with CO2 and H2O, the product contains 40% CO2, 30% H2O and 30% H2CO3, what is the ratio of feed rate of CO2 and rate of products?

A. 0.3
B. 0.4
C. 0.7
D. 0.9View answer
Answer» D. 0.9View answer
17.

A reactor supplied with CO2 and H2O, the product contains CO2, H2O and H2CO3, if the rate of products is 10 mole and percentage of CO2 in products is 20%, what is the feed rate of H2O?

A. 2 mole
B. 4 mole
C. 8 mole
D. 10 moleView answer
Answer» D. 10 moleView answer
18.

A reactor supplied with CO2 and H2O, the product contains H2O and H2CO3, if the rate of H2O is 10 mole, what is the rate of products?

A. 5 mole
B. 10 mole
C. 15 mole
D. 20 moleView answer
Answer» C. 15 mole
19.

A reactor supplied with CO2 and H2O, the product contains H2O and H2CO3, if the rate of CO2 is 10 mole, what is the percentage of H2CO3 in products?

A. 10
B. 50
C. 75
D. 100View answer
Answer» E.
20.

A reactor supplied with CO2 and H2O, the product contains 10% H2CO3 and 90% H2O, what is the feed rate of CO2, if the rate of product is 50 mole?

A. 5 mole
B. 10 mole
C. 25 mole
D. 50 moleView answer
Answer» B. 10 mole
21.

WHAT_IS_THE_NUMBER_OF_MOLES_OF_H2O_IN_THE_PRODUCT??$

A. 4.8
B. 8.8
C. 16.8
D. 32.8
Answer» E.
22.

A_REACTOR_IS_SUPPLIED_WITH_10_MOLES_GLUCOSE_AND_EXCESS_OXYGEN_TO_PRODUCE_CO2_AND_H2O,_IF_THE_RATE_OF_PRODUCTS_IS_25_MOLES,_WHAT_IS_THE_PERCENTAGE_OF_CO2_IN_THE_PRODUCTS??$

A. 0.1
B. 0.2
C. 0.3
D. 0.4
Answer» E.
23.

Ethane is supplied with chlorine in a reactor, how many independent element balances can you write

A. 1
B. 2
C. 3
D. 4
Answer» D. 4
24.

Ethane is supplied at the rate F with oxygen at the rate W and leaves the following products CO2, H2O, O2, C2H6 and H2 at the rate P. How many independent element balances are possible 

A. 1
B. 2
C. 3
D. 4
Answer» D. 4
25.

A reactor is supplied with 2 streams both at the rate 5 mole, one has 40% Cl2 and 60% N2, and another has pure C2H6, if the product has C2H5Cl, HCl and N2 at the rate 20 mole, what is the percentage of HCl in products?

A. 10%
B. 15%
C. 25%
D. 30%
Answer» C. 25%
26.

A reactor is supplied with 2 streams both at same rates, one has pure Cl2, and another has pure C2H6, if the product has 20% C2H5Cl and 50% HCl and 30% C2H6, what is the ratio of rate of feed and rate of product?

A. 0.2
B. 0.5
C. 2
D. 5
Answer» C. 2
27.

A reactor is supplied with 2 streams both at same rates, one has pure Cl2, and another has pure C2H6, if the product has 20% C2H5Cl and 80% HCl, what is the ratio of rate of feed and rate of product?

A. 0.2
B. 0.5
C. 2
D. 5
Answer» B. 0.5
28.

C3H8 is burned in air with a composition of 40 moles and 100 moles?

A.
B. 12.6
C. 10.6
Answer» C. 10.6
29.

A reactor is supplied with 10 moles glucose and excess oxygen to produce 40% CO2, 60% H2O, what is the rate of products?

A. 25 mole
B. 50 mole
C. 75 mole
D. 100 mole
Answer» B. 50 mole
30.

What is the ratio of Hydrogen to the Pentane in the feed?

A. 1.167
B. 2.167
C. 3.167
D. 4.167
Answer» D. 4.167
31.

A reactor is supplied with glucose and oxygen to produce 40% CO2, 60% H2O, what is the ratio of glucose reacted and products?

A. 0.2
B. 0.4
C. 0.6
D. 0.8
Answer» C. 0.6
32.

A reactor is supplied with 10 mole of Hexane and some hydrogen to produce 20% methane, 30% propane and 50% butane, what is the rate of products?

A. 10 mole
B. 16.6 mole
C. 26.6 mole
D. 40 mole
Answer» D. 40 mole
33.

What is the mole fraction of Hydrogen in the feed?

A. 0.284
B. 0.484
C. 0.684
D. 0.884
Answer» C. 0.684
34.

A reactor is supplied with Hexane and hydrogen to produce 20% methane, 30% propane and 50% butane, what is the ratio of hydrogen consumed and the hexane reacted?

A. 0.21
B. 0.45
C. 0.59
D. 0.73
Answer» E.
35.

A reactor supplied with CO2 and H2O, the product contains 40% CO2, 30% H2O and 30% H2CO3, what is the ratio of feed rate of CO2 and rate of products?

A. 0.3
B. 0.4
C. 0.7
D. 0.9
Answer» D. 0.9
36.

Molar ratio of H2 consumed to Hexane reacted in the process?

A. 1.2
B. 1.4
C. 1.6
D. 1.8
Answer» D. 1.8
37.

A reactor supplied with CO2 and H2O, the product contains CO2, H2O and H2CO3, if the rate of products is 10 mole and percentage of CO2 in products is 20%, what is the feed rate of H2O?

A. 2 mole
B. 4 mole
C. 8 mole
D. 10 mole
Answer» D. 10 mole
38.

What is the mole percent of H2 in the feed?

A. 59.2
B. 49.2
C. 39.2
D. 29.9
Answer» B. 49.2
39.

A reactor supplied with CO2 and H2O, the product contains H2O and H2CO3, if the rate of H2O is 10 mole, what is the rate of products?

A. 5 mole
B. 10 mole
C. 15 mole
D. 20 mole
Answer» C. 15 mole
40.

What is the mole percent of C6H14 in the feed?

A. 40.2
B. 50.2
C. 60.2
D. 70.2
Answer» C. 60.2
41.

A reactor supplied with CO2 and H2O, the product contains H2O and H2CO3, if the rate of CO2 is 10 mole, what is the percentage of H2CO3 in products?

A. 10
B. 50
C. 75
D. 100
Answer» E.
42.

A reactor supplied with CO2 and H2O, the product contains 10% H2CO3 and 90% H2O, what is the feed rate of CO2, if the rate of product is 50 mole?

A. 5 mole
B. 10 mole
C. 25 mole
D. 50 mole
Answer» B. 10 mole