This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Chapter 11 - Heat and Thermodynamics - 14
1.
Empirical formula of naphthalene is?
a) CH
b) C
5
H
4+
c) C
4
H
5
d) C
10
H
8
2.
Which one of the following is used in mothballs?
a) glucose
b) methane
c) ammonia
d) naphthalene
3.
The term molecular mass is used for?
a) ionic compounds
b) molecular compounds
c) none of these
d) both of these
4.
Ionic compound is represented by?
a) empirical formula
b) formula unit
c) none of these
d) molecular mass
5.
The sum of atomic masses of all the atoms in the formula unit of a substance is called as?
a) molecular mass
b) formula mass
c) atomic mass
d) atomic mass unit
6.
Which one of the following indicates the simplest ratio between cations and anions in an ionic compound?
a) empirical formula
b) formula unit
c) molecular formula
d) molecular mass
7.
Formula unit for common salt is?
a) Na
2
C1
b) NaCl
c) Na
2
Cl
2
d) NaCl
2
8.
What is commonly called as table salt?
a) magnesium chloride
b) calcium chloride
c) sodium chloride
d) potasium chloride
9.
Mg(OH)
2
is known as?
a) milk of magnesia
b) ammonia
c) blood sugar
d) table salt
10.
Formula mass of NaCl is?
a) 23.5 amu
b) 12.5 amu
c) 35.5 amu
d) 58.5 amu
This is more feedback!
This is the feedback!
