For each question please explain why, I want to learn! Thank you! 1. Which of th

Question

For each question please explain why, I want to learn! Thank you!

1. Which of the following is the weakest base? A.) F- B.) OBr- C.) CN- D.) NO2- E.) NH3

2. All the following species would be expected to function as Lewis bases except A.) BH3 B.) H2O C.) I- D.) OH- E.) NH3

3. Which of the following salt solutions is acidic? A.) KNO3 B.) NH4F C.) NaCl D.) NaC2H3O2 E.) ZnBr2

4. Which of the following salts when added to pure water will not change the pH? A.) NaHCO3 B.) KHSO3 C.) KNO3 D.) NH4NO3 E.) NaNO2

Explanation / Answer

1)F- is the weakest base, because HF is the strongest acid and the conjugate base of strong acid is weakest bas

2) BH3, because lewis base means it should havvee lone pair of electrons to donate. but BH3 does not havve lone pair of electrons to donate so it is not lewis base

3) NaCl

4) D

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