MCQOPTIONS
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MCQOPTIONS
This section includes 11 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 will be the molecular weight of a chemical, consisting 2 moles of H2SO4, 3 moles of SO2 and 1 mole of NaOH? |
| A. | 128 |
| B. | 228 |
| C. | 328 |
| D. | 428 |
| Answer» E. | |
| 2. |
Two statements are given as(1) When a percentage of fractions is given for gas, it is assumed that it refers to a mole fraction(2) When a percentage of fractions is given for liquid or solid, it is assumed that it refers to the weight fractionTrue statements are |
| A. | 1 |
| B. | 2 |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» D. Neither 1 nor 2 | |
| 3. |
WHAT_WILL_BE_THE_MOLECULAR_WEIGHT_OF_A_CHEMICAL,_CONSISTING_2_MOLES_OF_H2SO4,_3_MOLES_OF_SO2_AND_1_MOLE_OF_NAOH??$ |
| A. | 128 |
| B. | 228 |
| C. | 328 |
| D. | 428 |
| Answer» E. | |
| 4. |
What is a mole? |
| A. | A mole is found in a certain number of cm3 of one substance or another. |
| B. | A mole is the sum of atomic weights. |
| C. | A mole is the number of molecules in one gram of a substance. |
| D. | None of the mentioned |
| Answer» E. | |
| 5. |
If in a compound the moles of consisting atoms are doubled then the mole fraction of a particular atom will be |
| A. | Double |
| B. | Half |
| C. | Remain same |
| D. | None of the mentioned |
| Answer» B. Half | |
| 6. |
What is the formula for a solid compound that contains 42.11% C, 51.46% O, and 6.43% H and having molecular weight about 341. |
| A. | C10 O12H29 |
| B. | C11O13 H |
| C. | C12O11H22 |
| D. | C12O10H37 |
| Answer» D. C12O10H37 | |
| 7. |
A bucket contains 10 kg of water and 10 kg of NaOH. The respective mass fraction of water and the mole fraction of NaOH are |
| A. | 0.5 and 0.31 |
| B. | 1.0 and 0.62 |
| C. | 0.5 and 0.69 |
| D. | 1.0 and 0.50 |
| Answer» B. 1.0 and 0.62 | |
| 8. |
Two statements are given as |
| A. | When a percentage of fractions is given for gas, it is assumed that it refers to a mole fraction |
| B. | When a percentage of fractions is given for liquid or solid, it is assumed that it refers to the weight fraction |
| C. | |
| Answer» D. | |
| 9. |
What is the average molecular weight of a gas containing 20% N2 (molecular wt. = 28) and 80% SO2 (molecular wt. = 64)? |
| A. | 28.4 |
| B. | 56.8 |
| C. | 24.4 |
| D. | 48.8 |
| Answer» C. 24.4 | |
| 10. |
What is the percent water in CuSO4.5H2O? |
| A. | 12 |
| B. | 14 |
| C. | 16 |
| D. | 18 |
| Answer» D. 18 | |
| 11. |
How many gm moles oxygen are there in 88 gms carbon di oxide? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |