Answer
Verified
400.2k+ views
Hint: A more general definition is that a conjugate base is the base member, X-, of a pair of compounds that transform into each other by gaining or losing a proton. The conjugate base is able to gain or absorb a proton in a chemical reaction.
Step-by-Step Solution:
To answer this question properly, we need to be very thorough with the Brønsted-Lowry conjugate acid-base theory.
An acid, by the Brønsted-Lowry definition, is a species which acts as a proton donor (i.e., it gives away an H+), while a base is a proton (H+) acceptor. One of the most familiar examples of a Brønsted-Lowry acid-base reaction is between hydrochloric acid and hydroxide ion:
In this reaction, a proton is transferred from HCl (the acid, or proton donor) to hydroxide ion (the base, or proton acceptor). As we learned in the previous chapter, curved arrows depict the movement of electrons in this bond-breaking and bond-forming process.
After a Brønsted-Lowry acid donates a proton, what remains is called the conjugate base. Chloride ion is thus the conjugate base of hydrochloric acid. Conversely, when a Brønsted-Lowry base accepts a proton it is converted into its conjugate acid form: water is thus the conjugate acid of hydroxide ion.
Therefore, by the Brønsted-Lowry acid-base theory, the answer to this question is a).
Note: While the Brønsted-Lowry acid-base theory is not as widely accepted as a valid acid-base theory as some of the others, it is the only one which deals with the ideas of conjugate acids and bases. This makes the study and thorough knowledge of the Brønsted-Lowry acid-base theory a necessity for any student of Chemistry.
Step-by-Step Solution:
To answer this question properly, we need to be very thorough with the Brønsted-Lowry conjugate acid-base theory.
An acid, by the Brønsted-Lowry definition, is a species which acts as a proton donor (i.e., it gives away an H+), while a base is a proton (H+) acceptor. One of the most familiar examples of a Brønsted-Lowry acid-base reaction is between hydrochloric acid and hydroxide ion:
In this reaction, a proton is transferred from HCl (the acid, or proton donor) to hydroxide ion (the base, or proton acceptor). As we learned in the previous chapter, curved arrows depict the movement of electrons in this bond-breaking and bond-forming process.
After a Brønsted-Lowry acid donates a proton, what remains is called the conjugate base. Chloride ion is thus the conjugate base of hydrochloric acid. Conversely, when a Brønsted-Lowry base accepts a proton it is converted into its conjugate acid form: water is thus the conjugate acid of hydroxide ion.
Therefore, by the Brønsted-Lowry acid-base theory, the answer to this question is a).
Note: While the Brønsted-Lowry acid-base theory is not as widely accepted as a valid acid-base theory as some of the others, it is the only one which deals with the ideas of conjugate acids and bases. This makes the study and thorough knowledge of the Brønsted-Lowry acid-base theory a necessity for any student of Chemistry.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
How do you solve x2 11x + 28 0 using the quadratic class 10 maths CBSE
Select the correct plural noun from the given singular class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
The sum of three consecutive multiples of 11 is 363 class 7 maths CBSE
What is the z value for a 90 95 and 99 percent confidence class 11 maths CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
How many squares are there in a chess board A 1296 class 11 maths CBSE