Toggle navigation
التسجيل
تسجيل الدخول
الرئيسية
»
الاختبارات
»
الترم الأول
»
Unit 1 - Lesson 2: Matter Construction
Unit 1 - Lesson 2: Matter Construction
نسخ
تكرار
1
The properties of.......... of water is the same properties of 100 ml of it.
an element
a molecule
an atom
an ion
2
The motion of solid molecules is..........
the most.
unlimited.
limited.
completely free.
3
On adding 30 cm³ of water to 20 cm³ of alcohol, the volume of the mixture becomes......... Cm³.
50
54
48.8
30
4
The intermolecular spaces among the molecules of........... are very small.
iron
mercury
water
nitrogen
5
The liquid matter is characterized by all of the following except..........
the intermolecular distances among its molecules are intermediate.
it takes the shape of the container.
the intermolecular force among its molecules is very small.
the motion of its molecules is more free.
6
The intermolecular spaces among the molecules of oxygen gas is ...........
very large.
no correct answer.
medium.
very small.
7
The attraction force among solid molecules is..............
no correct answer.
very small.
large.
small.
8
The attraction force between water molecules is............. that between water vapor molecules.
no correct answer
more than
equal to
less than
9
The.......... matter doesn't take the shape of the container.
no correct answer
gaseous
solid
liquid
10
On heating a solid substance............
all of the previous answers.
the attraction force among its molecules decreases.
the speed of its molecules increases.
the intermolecular spaces among its molecules increase.
11
On heating a liquid substance, an..........
the attraction force among its molecules decreases.
the intermolecular spaces among its molecules increase.
all of the previous answers.
the speed of its molecules increases.
12
The molecule is composed of very small particles called...........
atoms.
compounds.
cells.
elements.
13
It is the simplest pure form of matter which can't be analyzed chemically into simpler form by simple chemical methods.
The element.
a molecule.
an atom.
The compound.
14
It is a substance which is formed from the combination of atoms of two or more different elements with constant weight ratios.
The element.
no correct answer.
a molecule.
an atom.
The compound.
15
Molecules of nobel gases are composed of........... atom(s).
one or two
one
three
two
16
From inert gases is.........
oxygen.
helium.
hydrogen.
nitrogen.
17
........... is the monoatomic liquid molecule.
lodine
Chlorine
Mercury
Bromine
18
The intermolecular force among the molecules of water is...........
medium.
small.
large.
no correct answer.
19
All of the following are diatomic gaseous molecules except..........
chlorine..
argon.
nitrogen.
hydrogen.
20
Water molecule is composed of........
one hydrogen atom and two oxygen atoms.
two hydrogen atoms and two oxygen atoms.
one oxygen atom and two hydrogen atoms.
one hydrogen atom and two nitrogen atoms.
21
The molecule of oxygen is composed of.......... atom(s).
two
Four
one
three
22
............ molecule is composed of two atoms of two different elements.
Hydrogen chloride
Ammonia
Chlorine
Water
23
The number of elements is equal to the number of atoms in......... molecule.
hydrogen chloride
water
ammonia
oxygen
24
Which one of the following molecules contains the largest number of atoms?...........
Bromine
Water
Hydrogen chloride
Ammonia
25
Ammonia and water molecules participate in the presence of.......... atoms.
hydrogen
chlorine
nitrogen
oxygen
26
One gram of....... contains one type of atoms.
water
iron.
Ammonia
hydrogen chloride
×
بلاغ عن خطأ
مقدم البلاغ
طالب
معلم
السؤال
تفاصيل الخطأ
إرسال
إلغاء
×
مشاركة
#
#
نسخ الرابط