Which of the following is/are soft bases?H2O, H-, CO,CO2, C2H4, CN-
Correct answer: C. H-, CN-, CO, C2H4
- A. C2H4
- B. H- ,CN- , CO
- C. H-, CN-, CO, C2H4
- D. H-, CO, CO2, C2H4
Explanation
Soft bases have the donor atom of highly polarisable and they preferably combine with the metal ions of lower oxidation states.
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About Acids, Bases and Salts
Acid and base behaviour is explained through the Bronsted-Lowry transfer of protons and the Lewis donation or acceptance of electron pairs. The topic includes pH, pOH, ionisation and water equilibrium, plus salt formation and hydrolysis, where a salt solution may become acidic, basic or neutral.
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