| 11. | The standard intermediates are anionic, cationic, and carbenoid.
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| 12. | SMARTS can be used to encode pharmacophore elements such as anionic centers.
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| 13. | The first anionic exchanger replaces the anions in solution with hydroxide ions.
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| 14. | The second cationic and anionic exchangers further reduce ion levels in solution.
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| 15. | MBAS assay is an ASTM International standard technique for detecting anionic surfactants.
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| 16. | They are prepared by treating anionic complexes with carbon disulfide.
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| 17. | Catalysis by anionic catalysts is also called asymmetric counteranion-directed catalysis.
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| 18. | Cationic starch increases strength because it binds to the anionic paper fibers.
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| 19. | These can be anionic, cationic or non-ionic in nature.
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| 20. | Mixtures of cationic and anionic surfactants form insoluble salts and are not useful.
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