Final Exm- Smmer 2018 (pK,of HP0.-21; pK. of HF-32) C) The fast -ts frm inequal

Question

Final Exm- Smmer 2018 (pK,of HP0.-21; pK. of HF-32) C) The fast -ts frm inequal amounts E) Equilibrium favors the formation of products B) OF D) HO E) More inf is needed in onder to answer this question. A) ketone B) ether C) alkenc D) amine E) ester Which of the following molecules is most soluble in water? A) Which of the following statements about nucleophiles is false? A) They are electron-rich species B) They are atracted to positively-polarized atoms C) They are H" donors D) They form bonds by donating a pair of electrons to electrophiles E) They behave as Lewis bases

Explanation / Answer

4. lower pKa means higher Ka. So H3PO4 is a stronger acid than HF. The reaction will proceed preferntially in the forward direction as written above.

E)

5. Electrophile is the one which donates a H,

A) C6H5OH

6. Functional group not present in the given structure is,

A) ketone

7. Most soluble in water would be the one which is most polar (like-dissolves-like),

E)

It forms H-bond with water and solubilizes easily.

8. False statement about nucleophiles,

C)

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