MCQOPTIONS
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MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your UPSEE knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The attice energy of NaCl is |
| A. | ?787 KJ/mole |
| B. | 787 J/mole |
| C. | 780 KJ/mole |
| D. | 790 KJ/mole |
| Answer» B. 787 J/mole | |
| 2. |
Enthalpy of combustion for food fuel and other compounds can be measured accurately by |
| A. | glass calorimeter |
| B. | bomb calorimeter |
| C. | thermometer |
| D. | manometer |
| Answer» C. thermometer | |
| 3. |
Enthalpy of a reaction can be measured by |
| A. | glass calorimeter |
| B. | manometer |
| C. | Barometer |
| D. | thermometer |
| Answer» B. manometer | |
| 4. |
When enthalpy of reactants is higher than product then reaction will be |
| A. | endothermic |
| B. | spontaneous |
| C. | non-spontaneous |
| D. | exothermic |
| Answer» E. | |
| 5. |
Which one of the following is a state function? |
| A. | pressure |
| B. | temperature |
| C. | enthalpy |
| D. | all of the above |
| Answer» E. | |
| 6. |
State function the macroscopic property of system depends upon |
| A. | path of reaction |
| B. | initial state |
| C. | final state |
| D. | initial and final state |
| Answer» E. | |
| 7. |
Pumping of water uphill is |
| A. | spontaneous process |
| B. | non-spontaneous process |
| C. | irreversible process |
| D. | reversible process |
| Answer» C. irreversible process | |
| 8. |
CuSO4 + Zn?ZnSO4+Cu is |
| A. | Spontaneous reaction |
| B. | Non-spontaneous reaction |
| C. | Endothermic |
| D. | Exothermic |
| Answer» B. Non-spontaneous reaction | |
| 9. |
Reaction in which heat evolves is called |
| A. | endothermic |
| B. | spontaneous |
| C. | non-spontaneous |
| D. | exothermic |
| Answer» E. | |
| 10. |
Mathematical form of first law of thermodynamics is |
| A. | ?H=qp |
| B. | ?E = q + W |
| C. | ?E = q x v |
| D. | all of the above |
| Answer» C. ?E = q x v | |
| 11. |
Total energy of a system is |
| A. | P.E + K.E |
| B. | P.E + heat energy |
| C. | K.E + heat energy |
| D. | P.E + mechanical energy |
| Answer» B. P.E + heat energy | |
| 12. |
Anything which depends upon initial and final state of a system is |
| A. | environment |
| B. | surrounding |
| C. | state function |
| D. | enthalpy |
| Answer» D. enthalpy | |
| 13. |
The environment in which a system is studied is |
| A. | State function |
| B. | phase |
| C. | surrounding |
| D. | state |
| Answer» D. state | |
| 14. |
________________ is study about energy of a chemical system |
| A. | thermochemistry |
| B. | thermodynamics |
| C. | chemical kinetics |
| D. | stoichiometry |
| Answer» B. thermodynamics | |
| 15. |
A reaction has values of ?H and ?S which are both positive. The reaction |
| A. | Is spontaneous |
| B. | Spontaneity is temperature dependent |
| C. | Has an increasing free energy |
| D. | Is non-spontaneous |
| Answer» E. | |
| 16. |
If internal energy of the system is increased |
| A. | Change in state of the system is increased |
| B. | Temperature of the ystem may rise |
| C. | Chemical reaction may take place |
| D. | All |
| Answer» E. | |
| 17. |
If ?H value is less than zero than reaction will be |
| A. | Exothermic |
| B. | Endothermic |
| C. | May or may not be Exothormic or Endothermic |
| D. | None of these |
| Answer» B. Endothermic | |
| 18. |
Which one is not state function |
| A. | Internal energy |
| B. | Enthalpy |
| C. | Gibbs free energy |
| D. | Work |
| Answer» E. | |