Explore topic-wise MCQs in Chemical Process Calculation.

This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Process Calculation knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the mole fraction of H in the sample?

A. 0.33
B. 0.66
C. 0.99
D. 2.00
Answer» B. 0.66
Discussion
2.

Two students are calculating the average weight of a gas, containing N2 and other gases. Student-1 takes the actual molecular weight of N2(28) and student-2 takes it wrong N2(14). The calculated molecular weights by both of them are 36.8 and 31.2 respectively.What is the percentage of N2 in the mixture?a) 5%b) 10%c) 15%d) 20% 8-10. NaOH is there in a test tube,8. What is the mass fraction of Na in the sample?

A. 5%b) 10%c) 15%d) 20% 8-10. NaOH is there in a test tube,8. What is the mass fraction of Na in the sample?a) 0.575
B. 10%c) 15%d) 20% 8-10. NaOH is there in a test tube,8. What is the mass fraction of Na in the sample?a) 0.575b) 0.85
C. 15%d) 20% 8-10. NaOH is there in a test tube,8. What is the mass fraction of Na in the sample?a) 0.575b) 0.85c) 1.25
D. 20% 8-10. NaOH is there in a test tube,8. What is the mass fraction of Na in the sample?a) 0.575b) 0.85c) 1.25d) 2.28View Answer
Answer» C. 15%d) 20% 8-10. NaOH is there in a test tube,8. What is the mass fraction of Na in the sample?a) 0.575b) 0.85c) 1.25
Discussion
3.

A high energy producing gas contains the following mixtures of gases, 20% H2O, 40% CH4 and 40% CO2. The average molecular weight of the gas is?a) 25.6b) 26.6c) 27.6d) 28.6 5-6. Consider a gas contains N2(70%), O2(25%) and SO2(5%).5. What is the composition of the gase N2 on an SO2-free basis?

A. 25.6b) 26.6c) 27.6d) 28.6 5-6. Consider a gas contains N2(70%), O2(25%) and SO2(5%).5. What is the composition of the gase N2 on an SO2-free basis?a) 0.78
B. 26.6c) 27.6d) 28.6 5-6. Consider a gas contains N2(70%), O2(25%) and SO2(5%).5. What is the composition of the gase N2 on an SO2-free basis?a) 0.78b) 0.22
C. 27.6d) 28.6 5-6. Consider a gas contains N2(70%), O2(25%) and SO2(5%).5. What is the composition of the gase N2 on an SO2-free basis?a) 0.78b) 0.22c) 0.70
D. 28.6 5-6. Consider a gas contains N2(70%), O2(25%) and SO2(5%).5. What is the composition of the gase N2 on an SO2-free basis?a) 0.78b) 0.22c) 0.70d) 0.25View Answer
Answer» D. 28.6 5-6. Consider a gas contains N2(70%), O2(25%) and SO2(5%).5. What is the composition of the gase N2 on an SO2-free basis?a) 0.78b) 0.22c) 0.70d) 0.25View Answer
Discussion
4.

What is the mole fraction of Na atom in NaOH molecule?

A. 0.33
B. 0.66
C. 0.575
D. 1.150
Answer» D. 1.150
Discussion
5.

What is the mass fraction of Na atom in NaOH molecule?

A. 0.33
B. 0.66
C. 0.575
D. 1.150
Answer» B. 0.66
Discussion
6.

WHAT_IS_THE_MOLE_FRACTION_OF_H_IN_THE_SAMPLE??$

A. 0.33
B. 0.66
C. 0.99
D. 2.00
Answer» B. 0.66
Discussion
7.

What is the mass fraction of O in the sample?

A. 0.2
B. 0.4
C. 0.6
D. 0.8
Answer» C. 0.6
Discussion
8.

NaOH is there in a test tube,

A.
B. 0.575
C. 0.85
Answer» B. 0.575
Discussion
9.

Two students are calculating the average weight of a gas, containing N2 and other gases. Student-1 takes the actual molecular weight of N2(28) and student-2 takes it wrong N2(14). The calculated molecular weights by both of them are 36.8 and 31.2 respectively.

A.
B. 5%
C. 10%
Answer» C. 10%
Discussion
10.

What is the composition of the O2 gas on an SO2-free basis?

A. 0.78 and 0.22
B. 0.22 and 0.78
C. 0.70 and 0.25
D. 0.25 and 0.78
Answer» B. 0.22 and 0.78
Discussion
11.

Consider a gas contains N2(70%), O2(25%) and SO2(5%).

A.
B. 0.78
C. 0.22
Answer» B. 0.78
Discussion
12.

A high energy producing gas contains the following mixtures of gases, 20% H2O, 40% CH4 and 40% CO2. The average molecular weight of the gas is?

A. 25.6
B. 26.6
C. 27.6
D. 28.6
Answer» D. 28.6
Discussion
13.

What is the mass fraction of Na atom in NaOH molecule?

A. 0.33
B. 0.66
C. 0.575
D. 1.150
Answer» B. 0.66
Discussion