5. According to the Brønsted-Lowry theory, which of these anions is the weakest

Question

5. According to the Brønsted-Lowry theory, which of these anions is the weakest base? 1. Br2. CIO 3. NO, 4. F5. CH Coo- 6. According to the Lewis theory, a base 1. is a proton acceptor 2. is a proton donor 3. makes available a share in a pair of electrons 4. is any compound that contains electron pairs 5. accepts a share in a pair of electrons 7. According to the Lewis theory, which one of the following compounds would be expected to react as a Lewis acid, but not as a Lewis base? 1. BC12. 2. NH2 3. PH 4, H,O 5, all of these 8. According to the Lewis theory, which one of the following species would be expected to react as a Lewis base, but not as a Lewis acid?

Explanation / Answer

5. The correct answer is option 1, i.e. Br-.

Explanation: The conjugate base of a strong acid is weak.

Among HBr, HClO, HNO2, HF, and CH3COOH; HBr is the strongest acid, hence its conjugate base, Br- is the weakest base.

6. The correct answer is option 3.

Explanation: According to Lewi's theory, a base makes available a share in a pair of electrons.

Explanation: Lewis base is a species that contains nonbonding lone pairs of electrons.

7. The correct answer is option 1.

Explanation: BCl3 doesn't contain any lone pairs of electrons but it contains a vacant 2p-orbital on the central atom (B). Hence, it acts as a Lewis acid but not as a Lewis base.

Related Questions

Navigate

• Browse (All)
• Browse 5
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.