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1 : Which liquid among the following is a colloidal solution:
A
:
Milk
B
:
Slaked lime used for white wash
C
:
Vinegar solution
D
:
Mixture of AgCl in water
2 : The crystals of which substance has rhombic shape:
A
:
Brass
B
:
Sulphur
C
:
Graphite
D
:
Bronze
3 : The man-made polymer is:
A
:
Starch
B
:
Polystyrene
C
:
Protein
D
:
Cellulose
4 : Hazardous effects of shopping bags are studied in:
A
:
Geochemistry
B
:
Inorganic chemistry
C
:
Analytical chemistry
D
:
Environmental chemistry
5 : Which of the following is a heterogeneous mixture?
A
:
A solution of calcium hydroxide in water
B
:
Solution of potassium nitrate in water
C
:
Hot chocolate
D
:
Concrete mixture
6 : A solution of KClO₃ has a solubility of 13.2g per 100 cm³ at 40°C. How will its solubility be affected if temperature decreases?
A
:
The solubility will increase
B
:
The solubility will decrease
C
:
The solubility will remain the same
D
:
The solubility will first increase and then decrease
7 : When the tiny visible particles of a substance are dispersed through a medium, the mixture is named as:
A
:
True solution
B
:
Colloid
C
:
Suspension
D
:
Saturated solution
8 : Studying the rate of starch hydrolysis under different temperatures falls under which branch of chemistry?
A
:
Organic chemistry
B
:
Analytical chemistry
C
:
Biochemistry
D
:
Physical chemistry
9 : A state of matter whose properties are between those of liquids and crystalline solids:
A
:
Liquid crystal
B
:
Super critical fluid
C
:
Plasma
D
:
Dark matter
10 : Matter is present in neon sign in the state of:
A
:
Super critical fluid
B
:
Plasma
C
:
Gas
D
:
Liquid crystal
11 : What is the main focus of organic chemistry?
A
:
Study of metal
B
:
Study of water
C
:
Study of carbon- containing
D
:
Study of environment
12 : Which of the following is the branch of chemistry that focuses on the identification and analysis subtract?
A
:
Organic chemistry
B
:
Analytical chemistry
C
:
Inorganic chemistry
D
:
Physical chemistry
13 : What does inorganic chemistry primarfocus only?
A
:
Organic compounds
B
:
Non- carbon compounds
C
:
Biological molecules
D
:
Biochemistry
14 : Which branch of chemistry is the branch of chemistry and focuses on the identification and analysis of substances Organ chemistry?
A
:
Thermochemistry
B
:
Biochemistry
C
:
Physical chemistry
D
:
Analytical chemistry
15 : Which branch of the chemistry studies the chemical processes that occur within living organism?
A
:
Biochemistry
B
:
Organic chemistry
C
:
Analytical chemistry
D
:
Environmental chemistry
16 : What does environmental chemistry primarily focus on?
A
:
The chemistry of water
B
:
The study of chemicals in the environment and their effects?
C
:
The chemistry of human cells
D
:
The study of labor technique
17 : Which of the following is a property of solid?
A
:
Define Shape and volume
B
:
No define shape, but define volume
C
:
No define shape and volume
D
:
Define shape, and volume
18 : Which of the following is a branch of chemistry that deals with the study of subtract and the changes they undergo?
A
:
Biology
B
:
Chemistry
C
:
Astrology
D
:
Physics
19 : The branch of chemistry that studies the composition, structure, properties, and reactions of elements and compounds is called:
A
:
Analytical chemistry
B
:
Inorganic chemistry
C
:
Organic chemistry
D
:
Environmental chemistry
20 : Which branch of chemistry deals with the study of the properties and behavior of matter?
A
:
Analytical chemistry
B
:
Biochemistry
C
:
Organic chemistry
D
:
Physical chemistry
21 : What is the main characteristics of gases?
A
:
No define shape or volume
B
:
No define shape, but define volume
C
:
No define shape or volume
D
:
Define shape, but no define volume
22 : Which of the following states of matter has a define volume But no define matter
A
:
Solid
B
:
Liquid
C
:
Gas
D
:
Plasma
23 : Which branch of chemistry focuses on the study of the chemical in living organisms and the role enzymes?
A
:
Analytical chemistry
B
:
Biochemistry
C
:
States of Matter
D
:
Organic chemistry
24 : Which of the following is a pure substance made up of only type at atom?
A
:
Mixture
B
:
Element
C
:
Compound
D
:
Solution
25 : A compound is formed when?
A
:
Two or more elements are physically mixed tougher
B
:
Two or more elements are chemically combine in fixes proportions
C
:
A substances decomposes are mixed into simpler substance
26 : The particles in a gas are:
A
:
Closely packed and vibrate in place
B
:
Far apart and move freely
27 : Which of the following is a properly of a compound:
A
:
A compound can be easily by physical means
B
:
A compound has fixed composition
C
:
A compound consists of only type of atom
D
:
A compounds has no define ratio of elements
28 : Which allotrope of carbon is the hardest naturally occurring substance?
A
:
Graphite
B
:
Diamond
C
:
Fullerene
D
:
Coal
29 : Which of the following statements is true about the particles in a solid?
A
:
The particles move freely and quickly
B
:
The particles are far apart and move randomly
C
:
The particles are loosely states of matter has a define volume but no define shape?
D
:
The particles are loosely arranged and can flow
30 : What property of graphite makes it suitable for use as a lubricant?
A
:
Hardness
B
:
High melting
C
:
Layers can slide over each other
D
:
Electrical conductivity
31 : What happens to the particles in a suspension if left undisturbed for some time?
A
:
They dissolve completely
B
:
That evenly disturbed
C
:
They evaporate
32 : What is solubility?
A
:
The process of a solid turning into a gas
B
:
The ability of a substances to dissolve in solvent
C
:
The rate at which substance evaporates
D
:
The ability of a Fas to form a solid
33 : Which of the following is a true about elements:
A
:
Elements are always are mixture of difference arums
B
:
Elements can be chemically broken down in to compounds
C
:
Elements can be chemically broken down in to compounds
D
:
Elements are composed of only one type of molecules
34 : What happens to the solubility of most solids in water as the temperature increase?
A
:
It increase
B
:
It remains constant
C
:
Solubility remains unaffected by pressure
D
:
Solubility fluctuates with temperature instead
35 : Which of the following is a characteristics of a true solution?
A
:
It is always opaque
B
:
The particles can be seen with the naked eye
C
:
It is a homogeneous mixture
D
:
The solute particles settle down on standing
36 : Which of the following represents a chemical bond between two elements?
A
:
Water
B
:
Saltwater
C
:
Air
D
:
Soil
37 : Which of the following is an example of a heterogeneous mixture?
A
:
Salad
B
:
Air
C
:
Saltwater
D
:
Vinegar
38 : Which of the following is a allotrope of carbon?
A
:
Diamond
B
:
Sodium chloride
C
:
Water
D
:
Sulfured dioxide
39 : What is the main difference between the allotropes of an elements?
A
:
Graphite
B
:
Buckminsterfullence
C
:
Charcoal
D
:
Oxygen
40 : Which of the following is an example of a compound?
A
:
Carbon dioxide
B
:
Sand
C
:
Air
D
:
Fruit Salad
41 : Which factor does NOT affect the solubility of a substance?
A
:
Temperature
B
:
Pressure
C
:
Nature of the solution solvent
D
:
Color of the solute
42 : Which of the following best describe. Tyndall effect?
A
:
The evaporation of a solvent
B
:
The evaporation of light by large particles in a solution
C
:
The solubility of a solute in a solute
D
:
The separation of a mixture using a filter
43 : A homogeneous mixture has?
A
:
Difference components that are easily distinguished shape
B
:
Uniform composition throughout
C
:
Components that separate easily
D
:
Only one type of substance
44 : Which of the following is an example of colloidal solution?
A
:
Salt water
B
:
Milk
C
:
Sand in water
D
:
Pure water
45 : Which of the following is true for a colloidal solution?
A
:
It is heterogeneous and its particles settle down on standing
B
:
It is homogenous and its particles are invisible even a microscope
C
:
It is heterogeneous, but its particles do not settle down on standing
46 : Which states of matter both a define shape and a define volume?
A
:
Solid
B
:
Liquid
C
:
Gas
D
:
Plasma
47 : Which of the following is an example of a mixture?
A
:
Saltwater
B
:
Water
C
:
Oxygen
D
:
Sodium chloride
48 : Which of following can be classified as a mixture?
A
:
Air
B
:
Water
C
:
Sodium
D
:
Oxygen
Chemistry 9th MCQs || Ilam Ghar
Chemistry 9th
Chapter 1 : States of Matter and Phase Changes
