30 Questions
What is a base according to the Lewis concept?
A substance that can furnish a pair of electrons to form a coordinate bond
Which of the following is NOT a Lewis acid?
HCl
What is the key difference between a Bronsted base and a Lewis base?
All Bronsted bases are also Lewis bases, but not all Lewis bases are Bronsted bases
Which of the following molecules can act as a Lewis acid?
CO2
What is the characteristic of a Lewis acid?
It can accept a pair of electrons
What is a characteristic of Bronsted-Lowry concept?
It includes ionic species to act as acids or bases
Which of the following is a conjugate acid-base pair?
HCl and ClO4-
What is a limitation of Bronsted-Lowry concept?
It can explain the acid-base reactions in non-aqueous medium
According to Lewis concept, what is the definition of an acid?
An electron pair acceptor
What is a characteristic of substances like BF3 and AlCl3?
They do not have hydrogen and cannot give a proton
What is the primary characteristic of protogenic solvents?
They have the tendency to produce protons
According to Arrhenius concept, what type of ion do bases ionize to furnish in water?
OH- ions
In a reaction between a strong electrolyte and a weak electrolyte, which electrolyte will primarily provide the fluoride ions?
The strong electrolyte
What is the main limitation of the protonic definition of acids and bases?
All of the above
Which type of solvent is capable of acting as both a proton donor and a proton acceptor?
Amphiprotic solvent
What is the primary characteristic of strong electrolytes in terms of degree of ionization?
They have an α value of nearly 1
Which type of electrolyte undergoes decomposition when an electric current is passed through them?
Electrolytic conductors
What is the effect of a high dielectric constant of a solvent on its ionising power?
It increases its ionising power
What happens to the degree of ionization of a weak electrolyte at moderate concentrations?
It is very less than 1
How do ions behave in an ionic equilibrium state?
They behave osmotically as molecules
What is the condition for a solution to be neutral?
[H+] = [OH-] = 1 × 10^-7 M
What type of salts are formed by the addition of two simple salts?
Double salts
What is the pH of a solution if [H+] = 1 × 10^-5 M?
5
What is the concentration of H+ ions in a solution with a pH of 10?
1 × 10^-10 M
What is the characteristic of basic salts?
They are formed by incomplete neutralization of polyacidic bases
What is the relationship between the value of K w and the temperature?
The value of K w increases with the increase of temperature
What is the pH of a solution with a hydroxyl ion concentration of 10^(-7) M?
7
What type of salt is NH 4 PO4?
Mixed salt
What is the characteristic of a solution with a pH less than 7?
Acidic
What is the relationship between the ionic product of water and the pH of a solution?
The ionic product of water is less than the pH of a solution
Explore the concepts of acid-base chemistry, including the Bronsted-Lowry theory. Learn how it explains the behavior of substances like BF, AlCl, and more. Test your knowledge of acid-base reactions and their applications.
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