ENTRANCE TEST – 2011 Multiple Questions and Answers.
Exercise Questions ::
CHEMISTRY
21. | Pick the correct statement: |
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| A. | Chelates are usually more stable than ordinary |
| B. | Ordinary complexes are more stable than chelates |
| C. | Monodentate ligands form the chelates complexes |
| D. | Chelates have no ring structures |
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22. | In contact process, the catalyst used for the conversion of Sulphur dioxide to Sulphur trioxide is: |
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| A. | Magnesium oxide |
| B. | Aluminum oxide |
| C. | Silicon dioxide |
| D. | Vanadium pentoxide |
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23. | The unpolluted natural rain water is slightly acidic due to the reaction of rain water with: |
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| A. | Sulphur dioxide |
| B. | Oxides of nitrogen |
| C. | Carbon dioxide |
| D. | Hydrogen present in air |
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24. | In the Haber's process for the manufacturing of ammonia, nitrogen is taken from: |
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| A. | Proteins occurring in living bodies |
| B. | Ammonium salts obtained industrially |
| C. | Air |
| D. | Mineral containing nitrates |
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25. | In comparison with oxygen gas, a strong triple bond is present between two nitrogen atoms in a molecule and therefore nitrogen gas is: |
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| A. | Highly reactive gas |
| B. | Completely inert like noble gases |
| C. | Very less reactive gas |
| D. | Moderately reactive gas |
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