MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Solid State Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In the process of vacuum evaporation, which of the following substrate can be used? |
| A. | Ceramics, glass, silicon |
| B. | Plastics |
| C. | Amorphous solids |
| D. | F-block elements |
| Answer» B. Plastics | |
| 2. |
For the reaction given below which of the following statements is correct? 2SiI2⇄SiI4 + Si |
| A. | The reaction decreases to the left hand side with decreasing temperature |
| B. | The reaction increases to the right hand side with decreasing temperature |
| C. | The reaction decreases to the right hand with decreasing temperature |
| D. | The reaction increases to the left hand side with decreasing temperature |
| Answer» C. The reaction decreases to the right hand with decreasing temperature | |
| 3. |
In the chemical vapour deposition the films formed are formed by decomposition of what kind of substances? |
| A. | Liquid molecules |
| B. | Conducting polymers |
| C. | Gaseous molecules |
| D. | Solid molecules |
| Answer» D. Solid molecules | |
| 4. |
IN_THE_CHEMICAL_VAPOUR_DEPOSITION_THE_FILMS_FORMED_ARE_FORMED_BY_DECOMPOSITION_OF_WHAT_KIND_OF_SUBSTANCES??$ |
| A. | Liquid molecules |
| B. | Conducting polymers |
| C. | Gaseous molecules |
| D. | Solid molecules |
| Answer» D. Solid molecules | |
| 5. |
In the process of vacuum evaporation, which of the following substrate can be used?$ |
| A. | Ceramics, glass, silicon |
| B. | Plastics |
| C. | Amorphous solids |
| D. | F-block elements |
| Answer» B. Plastics | |
| 6. |
For_the_reaction_given_below_which_of_the_following_statements_is_correct?$ |
| A. | |
| B. | The reaction decreases to the left hand side with decreasing temperature |
| C. | The reaction increases to the right hand side with decreasing temperature |
| Answer» C. The reaction increases to the right hand side with decreasing temperature | |
| 7. |
State which of the following is correct regarding the process of vacuum evaporation? |
| A. | The surface of the substrate should be thoroughly cleaned |
| B. | The substrate should not be used at all |
| C. | Container used in the process should be chemically active with evaporation |
| D. | The source material used should be made up of glass or diamond |
| Answer» B. The substrate should not be used at all | |
| 8. |
Which of the following factor is taken care while selecting the container in the process of vacuum evaporation? |
| A. | Chemically reactive |
| B. | Withstand low temperature |
| C. | Withstand high temperature |
| D. | Conducting |
| Answer» D. Conducting | |
| 9. |
Chemical vapour deposition is a method which is used to obtain which of the following substance? |
| A. | Semiconductors |
| B. | Non conducting polymers |
| C. | Conducting compounds |
| D. | Crystalline semiconductor |
| Answer» E. | |
| 10. |
Which of the following process take place in the presence of required temperature? |
| A. | Anodic oxidation |
| B. | Cathodic oxidation |
| C. | Electroless deposition |
| D. | Thermal deposition |
| Answer» E. | |
| 11. |
The equilibrium thickness in the anodic oxidation process depends on which of the following factor? |
| A. | Nature of electrolyte |
| B. | Amount of electrolyte |
| C. | Magnitude of the applied field |
| D. | Weight of the electrode |
| Answer» D. Weight of the electrode | |
| 12. |
Which of the following can be used for producing oxide films on their surfaces during anodic oxidation? |
| A. | La, Ce, Pr, Nd |
| B. | He, Ne, Ar, Kr |
| C. | Nh, Fl, Mc, Lv |
| D. | Al, Ta, Nb, Ti |
| Answer» E. | |
| 13. |
What should be the nature of the material of the substrates on which the deposition take place in Cathodic deposition? |
| A. | Non metallic |
| B. | Metallic |
| C. | Plastic |
| D. | Wooden |
| Answer» C. Plastic | |
| 14. |
What is the factor that differentiates between Electroless deposition and Cathodic deposition? |
| A. | Nature of electrolyte |
| B. | Cathode |
| C. | External field |
| D. | Anode |
| Answer» D. Anode | |
| 15. |
For Cathodic deposition which of the following statements is appropriate? |
| A. | The charge is not balanced in the process of Cathodic deposition |
| B. | Esterification take place in the electrolyte solution |
| C. | The charge is balanced in the process of Cathodic deposition |
| D. | Oxidation and reduction take place in the electrolyte solution but not in the electrodes |
| Answer» D. Oxidation and reduction take place in the electrolyte solution but not in the electrodes | |
| 16. |
A process of electroplating, in which metals ions from the solutions are deposited on the cathode as a thin film in the presence of an applied external field is known as____________ |
| A. | Electroless deposition |
| B. | Cathodic deposition |
| C. | Anodic oxidation |
| D. | Thermal oxidation |
| Answer» C. Anodic oxidation | |