MCQOPTIONS
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MCQOPTIONS
This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Dilution means an increase in the amount of ____________ |
| A. | Solute |
| B. | Solvent |
| C. | Electrolyte |
| D. | All of the mentioned |
| Answer» C. Electrolyte | |
| 2. |
The equivalent conductance of 0.1 H2SO4offering a resistance of 50ohms when placed in a conductivity cell whose electrodes are 1cm apart with a cross-sectional area of 2cm2 at 250C is? |
| A. | 100 S cm2 eq-1 |
| B. | 1000 S cm2 eq-1 |
| C. | 10 S cm2 eq-1 |
| D. | 1 S cm2 eq-1 |
| Answer» B. 1000 S cm2 eq-1 | |
| 3. |
On dilution, the specific conductance ____________ |
| A. | Increases |
| B. | Remains same |
| C. | Decreases |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 4. |
On which factor does the conductance of electrolytic solutions depend? |
| A. | Temperature and pressure |
| B. | Number of charge carriers |
| C. | Dielectric constant of the solvent |
| D. | All of the mentioned |
| Answer» E. | |
| 5. |
The cell constant is defined as the ratio of ____________ |
| A. | Area of either electrodes to the length between the electrodes |
| B. | Length between the electrodes to the area of either electrodes |
| C. | Length between the electrodes to the volume of either electrode |
| D. | Resistivity to conductivity |
| Answer» C. Length between the electrodes to the volume of either electrode | |
| 6. |
The internationally recommended unit for conductance is ____________ |
| A. | Poise |
| B. | Dyne |
| C. | Ohm |
| D. | Siemens |
| Answer» E. | |
| 7. |
Which of the following is a specific conductivity reagent? |
| A. | KCl |
| B. | HCl |
| C. | NaCl |
| D. | MgCl2 |
| Answer» B. HCl | |
| 8. |
The reciprocal of conductivity is ____________ |
| A. | Viscosity |
| B. | Resistivity |
| C. | Turbidity |
| D. | None of the mentioned |
| Answer» C. Turbidity | |
| 9. |
Conductivity is defined as the ability to carry ____________ |
| A. | Voltage |
| B. | Resistance |
| C. | Current |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 10. |
THE_EQUIVALENT_CONDUCTANCE_OF_0.1_H2SO4OFFERING_A_RESISTANCE_OF_50OHMS_WHEN_PLACED_IN_A_CONDUCTIVITY_CELL_WHOSE_ELECTRODES_ARE_1CM_APART_WITH_A_CROSS-SECTIONAL_AREA_OF_2CM2_AT_250C_IS?$ |
| A. | 100 S cm<sup>2</sup> eq<sup>-1</sup> |
| B. | 1000 S cm<sup>2</sup> eq<sup>-1</sup> |
| C. | 10 S cm<sup>2</sup> eq<sup>-1</sup> |
| D. | 1 S cm<sup>2</sup> eq<sup>-1</sup> |
| Answer» B. 1000 S cm<sup>2</sup> eq<sup>-1</sup> | |
| 11. |
Dilution_means_an_increase_in_the_amount_of |
| A. | Solute |
| B. | Solvent |
| C. | Electrolyte |
| D. | All of the mentioned |
| Answer» C. Electrolyte | |
| 12. |
On dilution, the specific conductanc? |
| A. | Increases |
| B. | Remains same |
| C. | Decreases |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 13. |
On which factor does the conductance of electrolytic solution depends? |
| A. | Temperature and pressure |
| B. | Number of charge carriers |
| C. | Dielectric constant of the solvent |
| D. | All of the mentioned |
| Answer» E. | |
| 14. |
Choose the correct order of molar ionic conductivities of the following ions. |
| A. | Li<sup>+</sup> < Na<sup>+</sup> < K<sup>+</sup> < Rb<sup>+</sup> |
| B. | Li<sup>+</sup> < K<sup>+</sup> < Rb<sup>+</sup> < Na<sup>+</sup> |
| C. | Li<sup>+</sup> < Na<sup>+</sup> < Rb<sup>+</sup> < K<sup>+</sup> |
| D. | Li<sup>+</sup> < Rb<sup>+</sup> < Na<sup>+</sup> < K<sup>+</sup> |
| Answer» B. Li<sup>+</sup> < K<sup>+</sup> < Rb<sup>+</sup> < Na<sup>+</sup> | |
| 15. |
The cell constant is defined as the ratio of |
| A. | Area of either electrodes to the length between the electrodes |
| B. | Length between the electrodes to the area of either electrodes |
| C. | Length between the electrodes to the volume of either electrode |
| D. | Resistivity to conductivity |
| Answer» C. Length between the electrodes to the volume of either electrode | |
| 16. |
The internationally recommended unit for conductance is |
| A. | Poise |
| B. | Dyne |
| C. | Ohm |
| D. | Siemens |
| Answer» E. | |
| 17. |
Which of the following is specific conductivity reagent? |
| A. | KCl |
| B. | HCl |
| C. | NaCl |
| D. | MgCl<sub>2</sub> |
| Answer» B. HCl | |
| 18. |
The reciprocal of conductivity is |
| A. | Viscosity |
| B. | Resistivity |
| C. | Turbidity |
| D. | None of the mentioned |
| Answer» C. Turbidity | |
| 19. |
Conductivity is defined as the ability to carry |
| A. | Voltage |
| B. | Resistance |
| C. | Current |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |