Which of the following is not soft base according SHAB concept?
Correct answer: A. F-
- A. F-
- B. CN-
- C. H-
- D. R-
Explanation
The correct answer is F- because it is a hard base according to the SHAB concept. Hard bases are characterized by small size and high electronegativity, which is true for the fluoride ion. In contrast, CN-, H-, and R- are larger with lower charge densities, categorizing them as soft bases.
Last updated
Related questions
0.1 M HCl has pH = 1.0, it is about 100 times stronger than nitric acid. Then pH of acetic acid will be
1.0 M solution of NaOH is mixed with 1.0 M solution of H₂SO₄+ the solution formed is:
100 ml of each of 0.5 N NaOH, N/5 HCl and N/10 H2SO4 are mixed together. The resulting solution will be:
100 ml of N/5 NaOH will neutralize:
25 ml of a solution of barium hydroxide on titration with a 0.1 molar solution of hydrochloric acid gave a titre value of 35ml. The molarity of barium hydroxide solution was: