निम्नलिखित को ब्रॉस्टेड-लॉरी अम्ल और क्षार में वर्गीकृत कीजिए
HCI, NH.
NH, Hot
H,0*. CN
Classify the following into Bronsted - Lowry acid and
HCI, NH
NH, HẠO
H,0*. CN
कैल्सियम कार्बाइडसे एथाइन किस प्रकार बनाई जाती है?
Answers
The Arrhenius definition of acid and base is limited to aqueous (that is, water) solutions. Although this is useful because water is a common solvent, it is limited to the relationship between the H+ ion and the OH− ion. What would be useful is a more general definition that would be more applicable to other chemical reactions and, importantly, independent of H2O.
In 1923, Danish chemist Johannes Brønsted and English chemist Thomas Lowry independently proposed new definitions for acids and bases, ones that focus on proton transfer. A Brønsted-Lowry acid is any species that can donate a proton (H+) to another molecule. A Brønsted-Lowry base is any species that can accept a proton from another molecule. In short, a Brønsted-Lowry acid is a proton donor (PD), while a Brønsted-Lowry base is a proton acceptor (PA).
It is easy to see that the Brønsted-Lowry definition covers the Arrhenius definition of acids and bases. Consider the prototypical Arrhenius acid-base reaction:
H+(aq) + OH−(aq) → H2O(ℓ)