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