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प्रश्न
Answer the following in one sentence :
Why cations are Lewis acids?
उत्तर
Cations are electron-deficient species and can accept an electron pair. Hence, cations are Lewis acids.
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संबंधित प्रश्न
Answer the following in brief :
What are acids and bases according to Arrhenius theory?
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:
\[\ce{CO^2-_3 + H2O ⇌ OH- + HCO^-_3}\]
Answer the following in brief :
Write a reaction in which water acts as a base.
The theory which explain amphoteric nature of water is ______.
Classify the following species into Lewis acids and Lewis bases.
| Cl- | |
| `"NH"_4^+` | |
| BCl3 | |
| NH3 |
Which of the following fluro compounds is most likely to behave as a Lewis base?
Which of these is not likely to act as Lewis base?
Which of the following can act as Lowry – Bronsted acid as well as base?
What are Lewis acids and bases? Give two examples for each.
Discuss the Lowry – Bronsted concept of acids and bases.
Identify the conjugate acid-base pair for the following reaction in an aqueous solution.
\[\ce{HS^-_{( aq)} + HF ⇌ F^-_{( aq)} + H2S_{(aq)}}\]
Identify the conjugate acid-base pair for the following reaction in an aqueous solution.
\[\ce{HPO^{2-}_4 + SO^{2-}_3 ⇌ PO^{3-}_4 + HSO^-_3}\]
Account for the acidic nature of HClO4 in terms of Bronsted – Lowry theory, identify its conjugate base.
Name one amphoteric solvent.
Omeoprazole and lansoprazole are used as ______.
The species which will behave both as conjugate acid and conjugate base is ______.
Define conjugate acid-base pair.
Vinegar contains ______.
Identify the conjugate acid-base pairs in the reaction,
\[\ce{CH3COOH(aq) + NH3(aq) <=> NH^+_4(aq) + CH3COO^-(aq)}\]
Define acids and bases according to Bronsted-Lowry theory.
