Advertisements
Advertisements
प्रश्न
What are Lewis acids and bases? Give two examples for each.
Advertisements
उत्तर
1. Lewis acids:
- Lewis acid is a species that accepts an electron pair.
- Lewis acid is a positive ion (or) an electron deficient molecule.
- Example, Fe2+, CO2, BF3, SiF4 etc.
2. Lewis bases:
- Lewis base is a species that donates an electron pair.
- Lewis base is an anion (or) neutral molecule with atleast one lone pair of electrons.
- Example, NH3, F–, CH2 = CH2, CaO etc.
APPEARS IN
संबंधित प्रश्न
Choose the most correct answer :
The conjugate base of [Zn(H2O)4]2⊕ is __________.
Label the conjugate acid-base pair in the following reaction:
\[\ce{HCl + H2O ⇌ H3O\overset{\oplus} + Cl\overset{\ominus}{}}\]
Label the conjugate acid-base pair in the following reaction:
\[\ce{CO^2-_3 + H2O ⇌ OH- + HCO^-_3}\]
Identify the CORRECT statement.
Conjugate base for Bronsted acids H2O and HF are ___________.
Discuss the Lowry – Bronsted concept of acids and bases.
Identify the conjugate acid-base pair for the following reaction in an aqueous solution.
\[\ce{NH^+_4 + CO^{2-}_3 ⇌ NH3 + HCO^-_3}\]
Name one amphoteric solvent.
The species which will behave both as conjugate acid and conjugate base is ______.
Define acids according to Bronsted-Lowry theory.
