This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Chemistry - 9 Chapter - 9
Acids, Bases and Salts
Test - 2
1.
How the name acid was given?
a) The word acid is derived from a Latin word Acidus that means "sour" This name was given because the acids discovered in the beginning had a salty taste, e.g., acetic acid
b) The word acid is derived from a Latin word Acidus that means "sour" This name was given because the acids discovered in the beginning had a sour taste, e.g., acetic acid
2.
Arrhenius was a _______chemist.
a) Swedish
b) Greek
c) Italian
d) British
3.
What was Arrhenius concept? Short..Answer������Remember.by.Heart����� Arrhenius presented a concept that all such compounds which give hydrogen ion or proton (H+) in an aqueous solution are _____while those which give hydroxide ion (OH-) are______.
a) Acids, bases
b) Bases, alkalis
c) Acids, alkalis
d) Bases, acids
4.
What was Lowry-Bronsted Concept? Short..Answer������Remember.by.Heart����� According to Lowry-Bronsted Concept, an ____ is a compound, which donates a proton (H+) while a _____ is a compound, which accepts this proton.
a) acid, alkali
b) Base, alkali
c) Base, acid
d) Acid, Base
5.
What is Conjugate Base of hydrochloric acid?
a) According to the definition Cl
_
is a base because it has the ability to accept a proton. It is called the Conjugate Base of hydrochloric acid.
b) According to the definition Cl
_
is an acid because it has the ability to accept a proton. It is called the Conjugate Base of hydrochloric acid.
6.
What was Lewis Concept? Short..Answer������Remember.by.Heart����� According to Lewis concept, acid is a substance, which has the ability to ______ a pair of electrons and base is a substance, which has the ability to _______ a pair of electrons.
a) Accept, donate
b) Donate, accept
7.
According to Arrhenius Concept when an acid gives proton in water, the process is called ionization.
a) False
b) True
8.
Define Strong Acid?
Strong Acid is an acid, which ionizes completely in water ie Nitric acid (HNO
3
), Sulphuric Acid (H
2
SO
4
)
a) Strong Acid is an acid, which do not ionize completely in water ie Nitric acid
b) Strong Acid is an acid, which ionizes completely in water ie Nitric acid
9.
Define Weak Acid?
a) Weak Acid is an acid which ionizes partially in water ie acetic acid and carbonic acid.
b) Weak Acid is an acid which ionizes completely in water ie acetic acid and carbonic acid.
10.
The strength of an acid is a measure of its ability to donate a proton and that of a base is to accept a proton.
a) False
b) True
This is more feedback!
This is the feedback!
