MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 16 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. |
The exhausted anion exchangers can be regenerated by working with __________ |
| A. | Acid solution |
| B. | Alcohol solution |
| C. | Alkali solution |
| D. | Water |
| Answer» D. Water | |
| 2. |
Potable water treatment does not involve __________ |
| A. | Disinfection |
| B. | Demineralisation |
| C. | Coagulation |
| D. | Sedimentation |
| Answer» C. Coagulation | |
| 3. |
External treatment is a preventive method and it is required in high pressure boilers. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
The external treatment of water does not include __________ |
| A. | Lime-soda process |
| B. | Sequestration |
| C. | Zeolites |
| D. | Ion-exchange process |
| Answer» C. Zeolites | |
| 5. |
The process of removal of hardness of water, irrespective of whether it is temporary or permanent is termed as __________ |
| A. | Cleansing action of water |
| B. | Hardness of water |
| C. | Softening of water |
| D. | Purity of water |
| Answer» D. Purity of water | |
| 6. |
According to the selection rules, the decreasing order of preference is __________ |
| A. | –NH2 > -C6H5 > -CH(CH3)2 > -H |
| B. | –CH(CH3)2 > -C6H5 > -H> -NH2 |
| C. | –NH2 > -CH(CH3)2 > -C6H5 > -H |
| D. | -C6H5 > -CH(CH3)2 >–NH2 > -H |
| Answer» B. –CH(CH3)2 > -C6H5 > -H> -NH2 | |
| 7. |
If our eyes travel in counter clockwise direction from the ligand of highest priority to the ligand of lowest priority, the configuration is ____________ |
| A. | R-Configuration |
| B. | S-Configuration |
| C. | E-Configuration |
| D. | C-Configuration |
| Answer» C. E-Configuration | |
| 8. |
POTABLE_WATER_TREATMENT_DOES_NOT_INVOLVE?$ |
| A. | Disinfection |
| B. | Demineralisation |
| C. | Coagulation |
| D. | Sedimentation |
| Answer» C. Coagulation | |
| 9. |
The_exhausted_anion_exchangers_can_be_regenerated_by_working_with$ |
| A. | Acid solution. |
| B. | Alcohol solution |
| C. | Alkali solution |
| D. | Water |
| Answer» D. Water | |
| 10. |
External treatment is a preventive method and it is required in high pressure boilers? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Which of the following conditioning method is not used in internal treatment? |
| A. | Colloidal |
| B. | Calgon |
| C. | Carbonate |
| D. | Bicarbonate |
| Answer» E. | |
| 12. |
The external treatment of water does not include |
| A. | Lime-soda process |
| B. | Sequestration |
| C. | Zeolites |
| D. | Ion-exchange process |
| Answer» C. Zeolites | |
| 13. |
The process of removal of hardness of water, irrespective of whether it is temporary or permanent is termed as |
| A. | Cleansing action of water |
| B. | Hardness of water |
| C. | Softening of water |
| D. | Purity of water |
| Answer» D. Purity of water | |
| 14. |
According to the selection rules, the decreasing order of preference is |
| A. | –NH<sub>2</sub> > -C<sub>6</sub>H<sub>5</sub> > -CH(CH<sub>3</sub>)<sup>2</sup> > -H |
| B. | –CH(CH<sub>3</sub>)<sup>2</sup> > -C<sub>6</sub>H<sub>5</sub> > -H> -NH<sub>2</sub> |
| C. | –NH<sub>2</sub> > -CH(CH<sub>3</sub>)<sup>2</sup> > -C<sub>6</sub>H<sub>5</sub> > -H |
| D. | -C<sub>6</sub>H<sub>5</sub> > -CH(CH<sub>3</sub>)<sup>2</sup> >–NH<sub>2</sub> > -H |
| Answer» B. ‚Äö√Ñ√∂‚àö√ë‚àö¬®CH(CH<sub>3</sub>)<sup>2</sup> > -C<sub>6</sub>H<sub>5</sub> > -H> -NH<sub>2</sub> | |
| 15. |
If our eyes travel in counter clockwise direction from the ligand of highest priority to the ligand of lowest priority, the configuration is |
| A. | R-Configuration |
| B. | S-Configuration |
| C. | E-Configuration |
| D. | C-Configuration |
| Answer» C. E-Configuration | |
| 16. |
Which of the following is not a priority rule for R, S-Configuration? |
| A. | If the four atoms attached to the chiral centre are all different, priority depends on atomic number, with the atom of lower atomic numbers getting lower priority |
| B. | If the two atoms attached to chiral centre are same, the atoms attached to each of these first atoms are compared |
| C. | When there is a double bond or triple bond, both atoms are considered to be duplicated or triplicated |
| D. | If the four atoms attached to the chiral centre are all different, priority depends on atomic number, with the atom of higher atomic numbers getting lower priority |
| Answer» E. | |