MCQOPTIONS
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MCQOPTIONS
This section includes 15 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 percent by weight of P in the compound in P4S3? |
| A. | 28.3 |
| B. | 56.4 |
| C. | 25.3 |
| D. | 58.3 |
| Answer» C. 25.3 | |
| 2. |
One mole of H2O equals |
| A. | 22.4 litre at 1 atm and 250C |
| B. | 6.02 x 1023 atoms of hydrogen and 6.02 x 1023 atoms of oxygen |
| C. | 18 g |
| D. | 1 gal |
| Answer» D. 1 gal | |
| 3. |
How many moles of Hydrogen are there in 1 mole of (NH4)2HPO4? |
| A. | 1 |
| B. | 4 |
| C. | 5 |
| D. | 9 |
| Answer» E. | |
| 4. |
What is the percent by weight of C in CO2?Molecular weight of C and Oxygen are 12 and 16 respectively? |
| A. | 25 |
| B. | 50 |
| C. | 75 |
| D. | None of the mentioned |
| Answer» C. 75 | |
| 5. |
WHAT_IS_THE_PERCENT_BY_WEIGHT_OF_P_IN_THE_COMPOUND_IN_P4S3??$ |
| A. | 28.3 |
| B. | 56.4 |
| C. | 25.3 |
| D. | 58.3 |
| Answer» C. 25.3 | |
| 6. |
ONE_MOLE_OF_H2O_EQUALS?$ |
| A. | 22.4 litre at 1 atm and 250C |
| B. | 6.02 x 10<sup>23</sup> atoms of hydrogen and 6.02 x 10<sup>23</sup> atoms of oxygen |
| C. | 18 g |
| D. | 1 gal |
| Answer» D. 1 gal | |
| 7. |
What_is_the_percent_by_weight_of_P_in_the_compound_in_P4S3?$ |
| A. | 28.3 |
| B. | 56.4 |
| C. | 25.3 |
| D. | 58.3 |
| Answer» C. 25.3 | |
| 8. |
One mole of H2O equal? |
| A. | 22.4 litre at 1 atm and 250C |
| B. | 6.02 x 10<sup>23</sup> atoms of hydrogen and 6.02 x 10<sup>23</sup> atoms of oxygen |
| C. | 18 g |
| D. | 1 gal |
| Answer» D. 1 gal | |
| 9. |
The smallest particle of a substance that is capable of independent existence is _________ |
| A. | Atom |
| B. | Molecule |
| C. | Electron |
| D. | Proton |
| Answer» C. Electron | |
| 10. |
The quantity of matter present in an object is |
| A. | Mass |
| B. | Molecular weight |
| C. | Mole |
| D. | Molar mass |
| Answer» B. Molecular weight | |
| 11. |
How many gms of NaOH is there in 0.002 lb mole NaOH? |
| A. | 32.36 |
| B. | 36.32 |
| C. | 24.28 |
| D. | 28.24 |
| Answer» C. 24.28 | |
| 12. |
Relative molecular mass of CO2 is _________ |
| A. | 22 |
| B. | 44 |
| C. | 66 |
| D. | 88 |
| Answer» C. 66 | |
| 13. |
What is the percentage by weight of Nitrogen in NH3? |
| A. | 82.35 |
| B. | 83.40 |
| C. | 88.12 |
| D. | 94.56 |
| Answer» B. 83.40 | |
| 14. |
Relative molecular masses can be calculated |
| A. | By the relative atomic mass |
| B. | By the relative mass of a covalent compound |
| C. | if individual relative atomic masses are added |
| D. | By adding relative compound masses |
| Answer» D. By adding relative compound masses | |
| 15. |
What is the percent by weight of C in CO2? |
| A. | |
| B. | 25 |
| C. | 50 |
| Answer» C. 50 | |